US2996483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanizable rubber composition and method of vulcanizing rubber
Assignee: Bridgestone Firestone Inc
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Filing: 1959-05-11
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Granted: 1961-08-15
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Lloyd O Bentz
- 👤 Jr George E P Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/76; C07D277/80; C08K5/36; C08K5/45; C08K5/46; C08K5/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
METHOD OF VULCANIZING RUBBER COMPRISING HEATING A SULFUR-VULCANIZABLE DIENE RUBBER AND SULFUR IN ADMIXTURE WITH 0.1% TO 10% OF THE WEIGHT OF THE RUBBER OF A SULFENAMIDE OF THE CLASS CONSISTING OF N-(1-METHYLCYCLOHEXYL)-2-BENZOTHIAZOLE SULFENAMIDE AND N-(1-METHYLCYCLOPENTYL)-2-BENZOTHIAZOLE SULFENAMIDE.
Claim 2
Dependent Claim
37 words
METHOD OF VULCANIZING RUBBER COMPRISING HEATING A SULFUR-VULCANIZABLE DIENE RUBBER AND SULFUR IN ADMIXTURE WITH 0.1% TO 10% OF THE WEIGHT OF THE RUBBER OF A SULFENAMIDE OF THE CLASS CONSISTING OF N-(1-METHYLCYCLOHEXYL)-2-BENZOTHIAZOLE SULFENAMIDE AND N-(1-METHYLCYCLOPENTYL)-2-BENZOTHIAZOLE SULFENAMIDE.
References Cited (Backward Citations)
US2382793A
Cited
US2814208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |