Patent US3339781A successfully refreshed from Google Patents.
US3339781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow wall container
Assignee: WR Grace and Co
•
Filing: 1965-03-22
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Granted: 1967-09-05
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Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 Schurman Peter Taube
- 👤 Confer Raymond Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:42
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/14; B65D43/16; B65D43/162; A; A45; A45C; A45C5/00; A45C5/02; B65D2251/00; B65D2251/10; B65D2251/1016; B65D2251/105; Y; Y10; Y10T; Y10T292/00; Y10T292/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN INTEGRAL ONE-PIECE THERMOPLASTIC CONTAINER HAVING MATING PARTS JOINED BY A HINGE INTEGRAL WITH BOTH OF SAID PARTS WITH AT LEAST ONE OF SAID PARTS BEIGN OF HOLLOW DOUBLE-WALL CONSTRUCTION, A FASTENER TONGUE INTEGRAL WITH ONE OF SAID PARTS, SAID TONGUE PROJECTING BEYOND THE SAID PART INTEGRAL THEREWITH AND HAVING LATERALLY PROJECTING EARS ON OPPOSITE SIDES THEREOF, THE OTHER OF SAID PARTS HAVING AN INTEGRAL FLANGE PROJECTING THEREFROM ALONG SAID TONGUE BEYOND THE JUNCTURE THEREOF WITH SAID ONE PART, THE SIDE OF SAID FLANGE OPPOSITE SAID TONGUE HAVING LATERALLY SPACED SHOULDERS UNDERCUT FOR SNAP-FIT ENGAGEMENT WITH SAID EARS WHEN SAID TONGUE IS ROLLED OVER SAID FLANGE.
Claim 2
Dependent Claim
106 words
AN INTEGRAL ONE-PIECE THERMOPLASTIC CONTAINER HAVING MATING PARTS JOINED BY A HINGE INTEGRAL WITH BOTH OF SAID PARTS WITH AT LEAST ONE OF SAID PARTS BEIGN OF HOLLOW DOUBLE-WALL CONSTRUCTION, A FASTENER TONGUE INTEGRAL WITH ONE OF SAID PARTS, SAID TONGUE PROJECTING BEYOND THE SAID PART INTEGRAL THEREWITH AND HAVING LATERALLY PROJECTING EARS ON OPPOSITE SIDES THEREOF, THE OTHER OF SAID PARTS HAVING AN INTEGRAL FLANGE PROJECTING THEREFROM ALONG SAID TONGUE BEYOND THE JUNCTURE THEREOF WITH SAID ONE PART, THE SIDE OF SAID FLANGE OPPOSITE SAID TONGUE HAVING LATERALLY SPACED SHOULDERS UNDERCUT FOR SNAP-FIT ENGAGEMENT WITH SAID EARS WHEN SAID TONGUE IS ROLLED OVER SAID FLANGE.
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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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |