US4553680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display case
Assignee: POLYCASE Inc
•
Filing: 1984-08-23
•
Granted: 1985-11-19
•
Expires: 2004-08-23
Abstract
Abstract A transparent display case comprising upper and lower panels, and four side panels, where the upper and lower panels are grooved to receive edges of the side panels, and four rod-like members extend between the upper and lower panels at the vertical edges of the side panels and hold the edges of the side panels in the grooves.
Inventors
- 👤 James S. Griggs
- 👤 Laura K. Lada-Mocarski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:15
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
A demountable display case comprising upper and lower panels, at least said upper panel being transparent, a continuous groove of essentially rectangular shape defined in the facing surfaces of each of said upper and lower panels, first and second surfaces of each of said upper and lower panels, first and second pairs of rectangular transparent side panels, said first pair of side panels being dimensioned to fit in opposite sides of said groove and define two opposite sides of said case, said second pair of side panels being dimensioned to fit in the other opposite sides of said groove and define the other two opposite sides of said case, and four securing means at the corners of said grooves and compressively holding said side panels in said grooves in said upper and lower panels, said securing means comprising rod-like members which substantially abut the vertical edges of said side panels, and means at each end of said rod members engaging said top and bottom panels said rod-like members being substantially the same dimension in diameter as the thickness of said side panels.
Claim 2
Dependent Claim
182 words
A demountable display case comprising upper and lower panels, at least said upper panel being transparent, a continuous groove of essentially rectangular shape defined in the facing surfaces of each of said upper and lower panels, first and second surfaces of each of said upper and lower panels, first and second pairs of rectangular transparent side panels, said first pair of side panels being dimensioned to fit in opposite sides of said groove and define two opposite sides of said case, said second pair of side panels being dimensioned to fit in the other opposite sides of said groove and define the other two opposite sides of said case, and four securing means at the corners of said grooves and compressively holding said side panels in said grooves in said upper and lower panels, said securing means comprising rod-like members which substantially abut the vertical edges of said side panels, and means at each end of said rod members engaging said top and bottom panels said rod-like members being substantially the same dimension in diameter as the thickness of said side panels.
Claim 3
Dependent Claim
15 words
The display case of claim 1 where said four side panels are of equal dimensions.
Claim 4
Dependent Claim
19 words
The display case of claim 1 where one pair of said side panels is longer than the other pair.
Claim 5
Dependent Claim
21 words
The display case of claim 1 where said rod-like members are the same length as the height of the side panels.
Claim 6
Dependent Claim
27 words
The display case of claim 1 where said grooves have radius corners and the ends of said rod-like members extend into said grooves at the radius corner.
Claim 7
Dependent Claim
19 words
The display case of claim 1 where said rod-like members tangentially abut the vertical edges of said side panels.
References Cited (Backward Citations)
US390794A
Cited
US584584A
Cited
US690874A
Cited
US780105A
Cited
US825564A
Cited
US876617A
Cited
US991571A
Cited
US1030444A
Cited
US1828088A
Cited
US2028058A
Cited
US2501980A
Cited
US2919045A
Cited
US2989226A
Cited
US3182846A
Cited
US3450293A
Cited
US3651975A
Cited
US3692204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |