Patent US3880161A successfully refreshed from Google Patents.
Patent US2815424A successfully refreshed from Google Patents.
US4500221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marker holder apparatus
Assignee: Individual
•
Filing: 1981-10-01
•
Granted: 1985-02-19
•
Expires: 2001-10-01
Abstract
Abstract Marker holder apparatus including a guide portion and an advancing portion; the guide portion including an elongated member with an open longitudinal slot, the elongated member including a bottom section, sidewall sections extending substantially perpendicularly from the longitudinal edges of the bottom section, flange sections extending from longitudinal edges of the sidewall sections remote from the bottom section, the flange sections extending toward one another substantially parallel to the bottom section, a stop section disposed adjacent one end of the elongated member, biasing mechanism located adjacent the end of the elongated member remote from the stop section, a plurality of spaced openings along the length of each of the sidewall sections, the openings in one of the sidewall sections being spaced therealong at points corresponding to the openings in the other of the sidewall sections; the advancing portion including an arcuate strip section disposed within the elongated member with each free end thereof being disposed adjacent a sidewall section, connector sections extending from the strip section across the flange sections from the free edges to the outer edges thereof, actuator sections extending from the connector sections along the sidewall sections and spaced therefrom, opening-engaging sections extending from the arcuate strip section adjacent the connector sections, the opening-engaging sections extending from the strip section partway toward the actuator section.
Inventors
- 👤 Clarence A. Emerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:53
CPC Classifications
B; B43; B43K; B43K23/00; B43K23/016
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
297 words
Marker holder apparatus including a guide portion and an advancing portion; said guide portion including an elongated member with an open longitudinal slot, said elongated member including a bottom section, sidewall sections extending substantially perpendicularly from the longitudinal edges of said bottom section, flange sections extending from longitudinal edges of said sidewall sections remote from said bottom section, said flange sections extending toward one another substantially parallel to said bottom section, a stop section disposed adjacent one end of said elongated member, biasing means located adjacent the end of said elongated member remote from said stop section, a plurality of spaced openings along the length of each of said sidewall sections, the openings in one of said sidewall sections being spaced therealong at points corresponding to the openings in the other of said sidewall sections; said advancing portion including an arcuate strip section disposed within said elongated member with each free end thereof being disposed adjacent a sidewall section, said strip section having a width substantially the same as the height of said elongated member, connector sections extending from said strip section across said flange sections from the free edges to the outer edges thereof, actuator sections extending from said connector sections along said sidewall sections and spaced substantially parallel therefrom, opening-engaging sections extending from said arcuate strip section adjacent said connector sections, said opening-engaging sections extending from said strip section partway toward said actuator sections, said opening-engaging sections each including a projection of reduced width extending from said arcuate strip section, said arcuate strip section biasing said opening-engaging sections toward said sidewall sections; whereby applying finger pressure to said actuator sections frees said opening-engaging sections from openings in said sidewall sections to allow said advancing portion to be moved along the length of said elongated member.
Claim 2
Dependent Claim
297 words
Marker holder apparatus including a guide portion and an advancing portion; said guide portion including an elongated member with an open longitudinal slot, said elongated member including a bottom section, sidewall sections extending substantially perpendicularly from the longitudinal edges of said bottom section, flange sections extending from longitudinal edges of said sidewall sections remote from said bottom section, said flange sections extending toward one another substantially parallel to said bottom section, a stop section disposed adjacent one end of said elongated member, biasing means located adjacent the end of said elongated member remote from said stop section, a plurality of spaced openings along the length of each of said sidewall sections, the openings in one of said sidewall sections being spaced therealong at points corresponding to the openings in the other of said sidewall sections; said advancing portion including an arcuate strip section disposed within said elongated member with each free end thereof being disposed adjacent a sidewall section, said strip section having a width substantially the same as the height of said elongated member, connector sections extending from said strip section across said flange sections from the free edges to the outer edges thereof, actuator sections extending from said connector sections along said sidewall sections and spaced substantially parallel therefrom, opening-engaging sections extending from said arcuate strip section adjacent said connector sections, said opening-engaging sections extending from said strip section partway toward said actuator sections, said opening-engaging sections each including a projection of reduced width extending from said arcuate strip section, said arcuate strip section biasing said opening-engaging sections toward said sidewall sections; whereby applying finger pressure to said actuator sections frees said opening-engaging sections from openings in said sidewall sections to allow said advancing portion to be moved along the length of said elongated member.
Claim 3
Dependent Claim
22 words
Marker holder apparatus according to claim 1 wherein said elongated member of said guide portion has a generally rectangular cross sectional configuration.
Claim 4
Dependent Claim
28 words
Marker holder apparatus according to claim 1 wherein said biasing means of said guide portion includes a cut section of said bottom section bent toward said flange sections.
Claim 5
Dependent Claim
19 words
Marker holder apparatus according to claim 1 wherein said stop section includes a section extending from said bottom section.
Claim 6
Dependent Claim
20 words
Marker holder apparatus according to claim 1 wherein the sections of said guide portion are formed as a unitary structure.
Claim 7
Dependent Claim
20 words
Marker holder apparatus according to claim 1 wherein the sections of said advancing portion are formed as a unitary structure.
Claim 8
Dependent Claim
24 words
Marker holder apparatus according to claim 1 including a clip member mounted on the outer surface of said bottom section of said guide portion.
References Cited (Backward Citations)
US575275A
Cited
US1494736A
Cited
GB426771A
Cited
US2025938A
Cited
US2257529A
Cited
US2555063A
Cited
US3756727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |