Patent US1610971A successfully refreshed from Google Patents.
Patent US3894540A successfully refreshed from Google Patents.
US3889736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display screen for exhibits and the like
Assignee: FIRKS EXHIBITIONS Inc
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Filing: 1973-05-18
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Granted: 1975-06-17
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Expires: 1993-05-18
Abstract
Abstract A portable, multiple panel, display screen for exhibit booths, classroom dividers, art gallery partitions, and the like comprises several individual detachable panels, each with recessed retainer grooves along their vertical edges. Replaceable one-piece hinges fit into adjoining retainer grooves to interconnect adjacent panels, and replaceable moulding strips fit into the terminal retainer grooves to provide a pleasing appearance at the screen edges. The panels are light in weight, and may be folded flat (with or without the hinges in place) for compact storage and shipment.
Inventors
- 👤 Robert Firks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7416; E04B2/7422; E04B2/7427; E04B2/7429; A; A47; A47G; A47G5/00; G; G09; G09F; G09F15/00; G09F15/0068; E04B2002/7461; E04B2002/7468
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
355 words
A multiple panel display screen comprising a plurality of panels hingedly joined together with detachable hinge strips and having moulding strips on the terminal edges of said screen, each of said panels comprising: 1. a rectangular wooden frame and a pair of thin structural sheets on the two broad opposite faces of said frame, a. said frame having a pair of grooves along substantially the entire length of two opposite edges of said frame, b. said grooves each having a shallow wide upper portion and a deep narrow portion, 2. extruded plastic retainer strips imbedded and secured in each of said grooves along substantially the entire length, a. said retainer strips each having a longitudinally extending access channel leading to a longitudinally extending undercut channel, 3. adjoining edges of said panels being hingedly joined together with a removeable, extruded plastic, hinge strip comprising a pair of similar hinge members each of generally T-shaped cross section, a. the top bar of said T being substantially the thickness of said panel, and being generally flat when said hinge strip is in said retainer strips, b. said members being integrally joined by a thin bridge portion along adjacent edges of the T''s. c. each of said hinge members including a short central web and an integral bead, d. the webs being receivable in the access channels of said extruded plastic retainer strips and the beads being receivable in said undercut channel, and 4. removeable, extruded plastic moulding strips covering external edges of said panel, a. said moulding strips being of generally T-shaped cross section and including a cross-strip and a central strip, b. the top bar of said T being substantially the thickness of said panel, c. the central strip including a short central web and an integral bead, and d. the web being receivable in said access channel and the bead being receivable in said undercut channel so that said cross strip is resiliently urged against the external edges of said panel to provide a permanent-appearing edge, said retainer strips and said moulding strip being interchangeable to provide for addition or removal of panels to said screen.
Claim 2
Dependent Claim
355 words
A multiple panel display screen comprising a plurality of panels hingedly joined together with detachable hinge strips and having moulding strips on the terminal edges of said screen, each of said panels comprising: 1. a rectangular wooden frame and a pair of thin structural sheets on the two broad opposite faces of said frame, a. said frame having a pair of grooves along substantially the entire length of two opposite edges of said frame, b. said grooves each having a shallow wide upper portion and a deep narrow portion, 2. extruded plastic retainer strips imbedded and secured in each of said grooves along substantially the entire length, a. said retainer strips each having a longitudinally extending access channel leading to a longitudinally extending undercut channel, 3. adjoining edges of said panels being hingedly joined together with a removeable, extruded plastic, hinge strip comprising a pair of similar hinge members each of generally T-shaped cross section, a. the top bar of said T being substantially the thickness of said panel, and being generally flat when said hinge strip is in said retainer strips, b. said members being integrally joined by a thin bridge portion along adjacent edges of the T''s. c. each of said hinge members including a short central web and an integral bead, d. the webs being receivable in the access channels of said extruded plastic retainer strips and the beads being receivable in said undercut channel, and 4. removeable, extruded plastic moulding strips covering external edges of said panel, a. said moulding strips being of generally T-shaped cross section and including a cross-strip and a central strip, b. the top bar of said T being substantially the thickness of said panel, c. the central strip including a short central web and an integral bead, and d. the web being receivable in said access channel and the bead being receivable in said undercut channel so that said cross strip is resiliently urged against the external edges of said panel to provide a permanent-appearing edge, said retainer strips and said moulding strip being interchangeable to provide for addition or removal of panels to said screen.
Claim 3
Dependent Claim
35 words
extruded plastic retainer strips imbedded and secured in each of said grooves along substantially the entire length, a. said retainer strips each having a longitudinally extending access channel leading to a longitudinally extending undercut channel,
Claim 4
Dependent Claim
35 words
extruded plastic retainer strips imbedded and secured in each of said grooves along substantially the entire length, a. said retainer strips each having a longitudinally extending access channel leading to a longitudinally extending undercut channel,
Claim 5
Dependent Claim
11 words
The screen of claim 1 including means for leveling each panel.
Claim 6
Dependent Claim
113 words
adjoining edges of said panels being hingedly joined together with a removeable, extruded plastic, hinge strip comprising a pair of similar hinge members each of generally T-shaped cross section, a. the top bar of said T being substantially the thickness of said panel, and being generally flat when said hinge strip is in said retainer strips, b. said members being integrally joined by a thin bridge portion along adjacent edges of the T''s. c. each of said hinge members including a short central web and an integral bead, d. the webs being receivable in the access channels of said extruded plastic retainer strips and the beads being receivable in said undercut channel, and
Claim 7
Dependent Claim
113 words
adjoining edges of said panels being hingedly joined together with a removeable, extruded plastic, hinge strip comprising a pair of similar hinge members each of generally T-shaped cross section, a. the top bar of said T being substantially the thickness of said panel, and being generally flat when said hinge strip is in said retainer strips, b. said members being integrally joined by a thin bridge portion along adjacent edges of the T''s. c. each of said hinge members including a short central web and an integral bead, d. the webs being receivable in the access channels of said extruded plastic retainer strips and the beads being receivable in said undercut channel, and
Claim 8
Dependent Claim
16 words
The screen of claim 1 wherein the lower portion of said retainer strip is longitudinally serrated.
Claim 9
Dependent Claim
115 words
removeable, extruded plastic moulding strips covering external edges of said panel, a. said moulding strips being of generally T-shaped cross section and including a cross-strip and a central strip, b. the top bar of said T being substantially the thickness of said panel, c. the central strip including a short central web and an integral bead, and d. the web being receivable in said access channel and the bead being receivable in said undercut channel so that said cross strip is resiliently urged against the external edges of said panel to provide a permanent-appearing edge, said retainer strips and said moulding strip being interchangeable to provide for addition or removal of panels to said screen.
Claim 10
Dependent Claim
115 words
removeable, extruded plastic moulding strips covering external edges of said panel, a. said moulding strips being of generally T-shaped cross section and including a cross-strip and a central strip, b. the top bar of said T being substantially the thickness of said panel, c. the central strip including a short central web and an integral bead, and d. the web being receivable in said access channel and the bead being receivable in said undercut channel so that said cross strip is resiliently urged against the external edges of said panel to provide a permanent-appearing edge, said retainer strips and said moulding strip being interchangeable to provide for addition or removal of panels to said screen.
Claim 11
Dependent Claim
13 words
The screen of claim 1 wherein said retainer strip is made of polypropylene.
Claim 12
Dependent Claim
13 words
The screen of claim 1 wherein said hinge strips are made of polypropylene.
Claim 13
Dependent Claim
15 words
The screen of claim 1 wherein said integral beads have a generally cylindrical cross section.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |