US2853399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective mats
Assignee: Individual
•
Filing: 1956-05-09
•
Granted: 1958-09-23
•
Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Clyde A Shoults
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:50
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/18; Y10T428/183; Y10T428/31504; Y10T428/31551; Y10T428/31641; Y10T428/31826
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A PROTECTIVE MAT CONSTRCTION COMPRISING, A CENTRAK LAYER OF STIFF GLAS REINFORCED PLASTIC MATERIAL IN THE FORM OF SLATS, A LAYER OF SPONGE RUBBER ON BOTH SIDES OF SAID CENTRAL LAYER, A RUBBER LAYER ON THE OUTSIDE OF EACH SAID SPONGE RUBBER LAYER, SAID RUBBER LAYERS HAVING NON-SKID OUTER SURFACE AND COLTHBACKED INNER SURFACE, WITH EVERY LAYER BONDED TO EVERY ADJACENT LAYER, SAID SALTS BEING SEPARATED AT THEIR LONGITUDINAL EDGES JUST SUFFICIENTLY THAT THE OTHER LAYERS CAN ACT AS HINGED FOR FOLDING THE MAT.
References Cited (Backward Citations)
US567985A
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US2244956A
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US2270902A
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US2469084A
Cited
GB657923A
Cited
US2459758A
Cited
US2522612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |