US2758995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of n-oxydiethylene benzothiazolesulfenamide
Assignee: Wyeth Holdings LLC
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Filing: 1953-08-19
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Granted: 1956-08-14
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Expires: 1973-08-19
Abstract
No abstract record available.
Inventors
- 👤 Frank A V Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:54
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR PREPARING N-OXYDIETHYLENE BENZOTHIAZOLESULFENAMIDE WHICH COMPRISES REACTING 2-MERCAPTOBENZOTHIAZOLE WITH MORPHOLINE, IN A SUBSTANTIALLY ANHYDROUS ORGANIC SOLVENT WHEREBY A SOLUTION OF MORPHOLINIUM MERCAPTOBENZOTHIAZOLE IS OBTAINED, TREATING SAID SOLUTION WITH CHLORINE, SAID CHLORINATION BEING CONDUCTED IN THE PRESENCE OF MORPHOLINE IN AMOUNT NOT SUBSTANTIALLY GREATER THAN THAT STOICHIOMETRICALLY REQUIRED TO NEUTRALIZE EVOLVED HYDROGEN CHLORIDE, CONTINUING TREATMENT FOR TIME SUFFICIENT TO SUBSTANTIALLY COMPLETE CHLORINATION, AND SEPARATING REACTION PRODUCTS.
Claim 2
Dependent Claim
67 words
A PROCESS FOR PREPARING N-OXYDIETHYLENE BENZOTHIAZOLESULFENAMIDE WHICH COMPRISES REACTING 2-MERCAPTOBENZOTHIAZOLE WITH MORPHOLINE, IN A SUBSTANTIALLY ANHYDROUS ORGANIC SOLVENT WHEREBY A SOLUTION OF MORPHOLINIUM MERCAPTOBENZOTHIAZOLE IS OBTAINED, TREATING SAID SOLUTION WITH CHLORINE, SAID CHLORINATION BEING CONDUCTED IN THE PRESENCE OF MORPHOLINE IN AMOUNT NOT SUBSTANTIALLY GREATER THAN THAT STOICHIOMETRICALLY REQUIRED TO NEUTRALIZE EVOLVED HYDROGEN CHLORIDE, CONTINUING TREATMENT FOR TIME SUFFICIENT TO SUBSTANTIALLY COMPLETE CHLORINATION, AND SEPARATING REACTION PRODUCTS.
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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |