US2772278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of sulfenamides
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1954-09-23
•
Granted: 1956-11-27
•
Expires: 1974-09-23
Abstract
No abstract record available.
Inventors
- 👤 Albert F Hardman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:56
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/76; C07D277/80; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE PROCESS OF PREPARING N,N-DIISOPROPHYL-2-BENZOTHIAZOLESULFENAMIDE WHICH COMPRISES REACTING IN AN INERT ORGANIC SOLVENT ONE MOL OF 2,2''-BIS BENZOTHIAZYLDISULFIDE, ONE MOL OF N-CHLORODIISOPROPYLAMINE AND TWO MOLS OF DIISOPROPYLAMINE, SAID SOLVENT CONTAINING NOT MORE THAN 10% BY WEIGHT OF WATER.
Claim 2
Dependent Claim
38 words
THE PROCESS OF PREPARING N,N-DIISOPROPHYL-2-BENZOTHIAZOLESULFENAMIDE WHICH COMPRISES REACTING IN AN INERT ORGANIC SOLVENT ONE MOL OF 2,2''-BIS BENZOTHIAZYLDISULFIDE, ONE MOL OF N-CHLORODIISOPROPYLAMINE AND TWO MOLS OF DIISOPROPYLAMINE, SAID SOLVENT CONTAINING NOT MORE THAN 10% BY WEIGHT OF WATER.
References Cited (Backward Citations)
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Cited
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Cited
US2354427A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |