Patent US3591940A successfully refreshed from Google Patents.
US3591940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting frame
Assignee: Individual
•
Filing: 1969-03-19
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Granted: 1971-07-13
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Expires: 1989-03-19
Abstract
Abstract Two opposite edges of a collapsible sheet such as a poster are releasably clamped to previously sized frame members. A spring member also previously sized is wedged between the frame members to force the members apart. As a result, the poster is suspended under tension between the frame members. In other embodiments, the poster may be suspended with only one clamped edge and without the spring member.
Inventors
- 👤 John W Slemmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:07
CPC Classifications
G; G09; G09F; G09F15/00; G09F15/02; G09F1/00; G09F1/10; G09F15/0006; G09F15/0018
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
99 words
A frame for a poster or like article comprising: an elongate clamp member having generally U-shaped cross section including a pair of outer legs and provided with at least one inner leg separated from the inner surface of an outer leg to form a longitudinally extending channel, an edge of said article being insertable within said channel, and a dowel, the diameter of said dowel being slightly greater than the interior width of said clamp member, insertion of said dowel within said clamp member subsequent to insertion of said article into said channel clamping said article to said frame.
Claim 2
Dependent Claim
99 words
A frame for a poster or like article comprising: an elongate clamp member having generally U-shaped cross section including a pair of outer legs and provided with at least one inner leg separated from the inner surface of an outer leg to form a longitudinally extending channel, an edge of said article being insertable within said channel, and a dowel, the diameter of said dowel being slightly greater than the interior width of said clamp member, insertion of said dowel within said clamp member subsequent to insertion of said article into said channel clamping said article to said frame.
Claim 3
Dependent Claim
40 words
The combination recited in claim 1 wherein said channel has a width at least equal to the thickness of an article to be supported, thereby preventing said article from being skewed when said dowel is inserted within said clamp member.
Claim 4
Dependent Claim
39 words
The combination recited in claim 2 including a second inner leg separated from the inner surface of the other outer leg to form a second longitudinally extending channel inside said clamp member for receiving an edge of another article.
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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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |