US2840492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box toe materials
Assignee: Beckwith Arden Inc
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Filing: 1953-05-27
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Granted: 1958-06-24
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Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Cherry L Emerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:59
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/08; A43B23/081; A43B23/086; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/23986; Y10T442/00; Y10T442/20; Y10T442/2361
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A BOX TOE BLANK COMPRISING A FIBROUS BASE IMPREGNATED AND STIFFENED WITH A RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF POLYSTYRENE AND A STYRENE-BUTADIENE COPOLYMER HAVING A STYRENE CONTENT IN EXCESS OF 50% BY WEIGHT BASED ON THE TOTAL WEIGHT OF COPOLYMER, WHEREIN THE RATIO OF TOTAL STYRENE TO BUTADIENE IS NOT LESS THAN 75:25 AND NOT MORE THAN 95:5, THE RATIO OF SAID RESINOUS COMPOSITIONS TO SAID FIBROUS BASE ON A DRY BASIS BEING AT LEAST APPROXIMATELY 3:1, WHEREBY THE BLANK MAY BE TEMPORARILY SOFTENED AND MADE ADHESIVE BY THE APPLICATION THERETO OF SOLVENT.
Claim 2
Dependent Claim
96 words
A BOX TOE BLANK COMPRISING A FIBROUS BASE IMPREGNATED AND STIFFENED WITH A RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF POLYSTYRENE AND A STYRENE-BUTADIENE COPOLYMER HAVING A STYRENE CONTENT IN EXCESS OF 50% BY WEIGHT BASED ON THE TOTAL WEIGHT OF COPOLYMER, WHEREIN THE RATIO OF TOTAL STYRENE TO BUTADIENE IS NOT LESS THAN 75:25 AND NOT MORE THAN 95:5, THE RATIO OF SAID RESINOUS COMPOSITIONS TO SAID FIBROUS BASE ON A DRY BASIS BEING AT LEAST APPROXIMATELY 3:1, WHEREBY THE BLANK MAY BE TEMPORARILY SOFTENED AND MADE ADHESIVE BY THE APPLICATION THERETO OF SOLVENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |