Patent US4691291A successfully refreshed from Google Patents.
US3780001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
(hydrocarbonthio)oxamide vulcanization retarders
Assignee: Goodrich Corp
•
Filing: 1972-03-27
•
Granted: 1973-12-18
•
Expires: 1992-03-27
Abstract
Abstract (HYDROCARBONTHIO)OXAMIDES ARE EFFICIENT NON-BLOOMING VULCANIZATION RETARDERS. THE COMPOUNDS ARE PREPARED BY THE REACTION OF OXAMIDE (OR OXANILIDE) WITH A HYDROCARBON SULFENYL CHLORIDE.
Inventors
- 👤 P Son
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/43; C08K5/44
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |