US3330813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 1-dialkyl-3-(tetrahydroethanopentalenyl) thioureas and their use as vulcanizationaccelerators for chloroprene polymers
Assignee: EIDP Inc
•
Filing: 1964-03-26
•
Granted: 1967-07-11
•
Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Gruber Wilhelm Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:41
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
29 words
A PROCESS FOR ACCELERATING THE VULCANIZATION OF A CHLOROPRENE POLYMER, COMPRISING INCORPORATING INTO SAID POLYMER MAGNESIUM OXIDE, ZINC OXIDE AND AN ACCELERATING AMOUNT OF A COMPOUND OF THE STRUCTURE
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |