Patent US2796437A successfully refreshed from Google Patents.
US2796437A
Expired / Lapsed
US
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Divinyl disulfide preparation
Assignee: Monsanto Chemicals Ltd
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Filing: 1953-03-19
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Granted: 1957-06-18
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Expires: 1973-03-19
Abstract
No abstract record available.
Inventors
- 👤 Harold F Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:57
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A PROCESS FOR PREPARING DIVIBYL DISULFIDE WHICH CONSISTS OF ADMIXING UNDER ANHYDROUS CONDITIONS 1 MOLAR PROPORTION OF A DISULFIDE HAVING THE FORMULA:
Claim 2
Dependent Claim
22 words
A PROCESS FOR PREPARING DIVIBYL DISULFIDE WHICH CONSISTS OF ADMIXING UNDER ANHYDROUS CONDITIONS 1 MOLAR PROPORTION OF A DISULFIDE HAVING THE FORMULA:
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) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |