US2911394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chloroprene polymers containing benzylthiourea accelerators
Assignee: Vanderbilt Chemicals LLC
•
Filing: 1956-06-15
•
Granted: 1959-11-03
•
Expires: 1976-06-15
Abstract
No abstract record available.
Inventors
- 👤 Lester A Brooks
- 👤 Jack C Bacon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:30
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A VULCANIZABLE POLYCHLOROPRENE COMPOSITION COMPRISING AN UNVULCANIZED CHLOROPRENE POLYMER AND FROM ABOUT 0.05% TO ABOUT 5.0% OF THE WEIGHT OF THE POLYMER OF A THIOUREA COMPOUND CAPABLE OF ACTING BY ITSELF AS A VULCANIZATION ACCELERATOR FOR THE POLYMER AND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
43 words
A VULCANIZABLE POLYCHLOROPRENE COMPOSITION COMPRISING AN UNVULCANIZED CHLOROPRENE POLYMER AND FROM ABOUT 0.05% TO ABOUT 5.0% OF THE WEIGHT OF THE POLYMER OF A THIOUREA COMPOUND CAPABLE OF ACTING BY ITSELF AS A VULCANIZATION ACCELERATOR FOR THE POLYMER AND HAVING THE GENERAL 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) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |