Patent US1823650A successfully refreshed from Google Patents.
Patent US3178428A successfully refreshed from Google Patents.
US3178428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Making sulfenamides from morpholines
Assignee: Monsanto Co
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Filing: 1961-11-17
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Granted: 1965-04-13
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Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
- 👤 Charles M Eaker
- 👤 Jr Chester D Trivette
- 👤 Robert L Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:50
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE PROCESS WHICH COMPRISES OXIDIZING IN AQUEOUS MEDIUM A MEMBER OF THE GROUP CONSISTING OF FREE MERCAPTOBENZOTHIAZOLE AND 2,2''-DITHIOBIS(BENZOTHIAZOLE) AND SUBSTANTIALLY THE THEORETICAL QUANTITY CALCULATED FOR THE CORRESPONDING SULFENAMIDE BUT NOT MORE THAN BOUT 50% MOLAR EXCESS OF A MEMBER OF THE GROUP CONSISTING OF MORPHOLINE AND DIMETHYLMORPHOLINE AT A TEMPREATURE WITHIN THE RANGE OF 70-90*C. SUFFICIENT TO KEEP THE CORRESPONDING SULFENAMIDE MOLTEN AND RECOVERING THE SULFENAMIDE FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
71 words
THE PROCESS WHICH COMPRISES OXIDIZING IN AQUEOUS MEDIUM A MEMBER OF THE GROUP CONSISTING OF FREE MERCAPTOBENZOTHIAZOLE AND 2,2''-DITHIOBIS(BENZOTHIAZOLE) AND SUBSTANTIALLY THE THEORETICAL QUANTITY CALCULATED FOR THE CORRESPONDING SULFENAMIDE BUT NOT MORE THAN BOUT 50% MOLAR EXCESS OF A MEMBER OF THE GROUP CONSISTING OF MORPHOLINE AND DIMETHYLMORPHOLINE AT A TEMPREATURE WITHIN THE RANGE OF 70-90*C. SUFFICIENT TO KEEP THE CORRESPONDING SULFENAMIDE MOLTEN AND RECOVERING THE SULFENAMIDE FROM THE REACTION MIXTURE.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |