US2849425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-pentamethylene tetrahydrobenzothl-azole-2-sulfenamide acceleration of rubber vulcanization
Assignee: Bridgestone Firestone Inc
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Filing: 1956-02-13
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Granted: 1958-08-26
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Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Alliger Glen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:57
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
METHOD OF VULCANIZING A SULFUR-VULCANIZING RUBBERY SUBSTANCE OF THE GROUPA CONSITING OF NAUTRAL RUBBER AND SYNTHETIC RUBBERY CONJUGATED DIOELFIN HYDROCARBON POLYMERS COMPRISING HEATING TO A VULCANIZING TEMPERATURE THE RUBBERY SUBSTANCE AND SULFUR IN THE PRESENCE OF 0.1 TO 10 PARTS PER 100 PARTS OF RUBBERY SUBSTANCE OF N-PENTAMETHYLENE TETRAHYDROBENZOTHIAZOLE-2-SULFENAMIDE.
Claim 2
Dependent Claim
49 words
METHOD OF VULCANIZING A SULFUR-VULCANIZING RUBBERY SUBSTANCE OF THE GROUPA CONSITING OF NAUTRAL RUBBER AND SYNTHETIC RUBBERY CONJUGATED DIOELFIN HYDROCARBON POLYMERS COMPRISING HEATING TO A VULCANIZING TEMPERATURE THE RUBBERY SUBSTANCE AND SULFUR IN THE PRESENCE OF 0.1 TO 10 PARTS PER 100 PARTS OF RUBBERY SUBSTANCE OF N-PENTAMETHYLENE TETRAHYDROBENZOTHIAZOLE-2-SULFENAMIDE.
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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |