Patent US2905737A successfully refreshed from Google Patents.
US2905737A
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Sulfur vulcanized rubber composition containing phenol reaction product as an oxidation inhibitor, and method of making same
Assignee: Bridgestone Firestone Inc
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Filing: 1955-07-05
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Granted: 1959-09-22
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Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A SULFUR-VULCANIZED RUBBER COMPOSITION WHICH COMPRISES NATURAL RUBBER AND AS AN INHIBITOR OF OXIDATION THEREOF A SMALL AMOUNT OF A COMPOUND HAVING THE FOLLOWING FORMULA
Claim 2
Dependent Claim
25 words
A SULFUR-VULCANIZED RUBBER COMPOSITION WHICH COMPRISES NATURAL RUBBER AND AS AN INHIBITOR OF OXIDATION THEREOF A SMALL AMOUNT OF A COMPOUND HAVING THE FOLLOWING FORMULA
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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |