Patent US2643273A successfully refreshed from Google Patents.
US2643273A
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Method of securing rubber adhesion to metal and composition therefor
Assignee: National Standard Co
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Filing: 1950-03-18
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Granted: 1953-06-23
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Expires: 1970-03-18
Abstract
No abstract record available.
Inventors
- 👤 Charles H T Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:33
CPC Classifications
C; C09; C09J; C09J121/00; C08; C08K; C08K3/00; C08K3/10; C08K3/11; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A RUBBER ADHESIVE COMPOSITION CONTAINING THEREIN FROM .2 TO .5% BY WEIGHT OF COBALT BASED ON THE WEIGHT OF THE RUBBER, THE COBALT BEING IN THE FORM OF A WATER SOLUBLE COBALT SAZLE AND BEING AN AQUEOUS SOLUTION WITH ABOUT 1.2 TO 3.5 PARTS OF WATER FOR EACH PART OF COBALT SALT.
Claim 2
Dependent Claim
52 words
A RUBBER ADHESIVE COMPOSITION CONTAINING THEREIN FROM .2 TO .5% BY WEIGHT OF COBALT BASED ON THE WEIGHT OF THE RUBBER, THE COBALT BEING IN THE FORM OF A WATER SOLUBLE COBALT SAZLE AND BEING AN AQUEOUS SOLUTION WITH ABOUT 1.2 TO 3.5 PARTS OF WATER FOR EACH PART OF COBALT SALT.
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) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |