US2962481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization of natural and synthetic rubber
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1958-04-28
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Granted: 1960-11-29
•
Expires: 1978-04-28
Abstract
No abstract record available.
Inventors
- 👤 Kerrigan Vincent
- 👤 Pryer Walter Reading
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/76; C07D277/80; C08K5/36; C08K5/45; C08K5/46; C08K5/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS FOR THE VULCANIZATION OF A MEMBER OF THE GROUP CONSISTING OF NATURAL AND SYNTHETIC RUBBER WHICH COMPRISES INCORPORATING IN THE RUBBER BEFORE VULCANIZATION AN N-TERTIARY-OCTYL-BIS-(BENZTHLAZYL-2-SULPHEN) IMIDE HAVING THE FORMULA
Claim 2
Dependent Claim
31 words
A PROCESS FOR THE VULCANIZATION OF A MEMBER OF THE GROUP CONSISTING OF NATURAL AND SYNTHETIC RUBBER WHICH COMPRISES INCORPORATING IN THE RUBBER BEFORE VULCANIZATION AN N-TERTIARY-OCTYL-BIS-(BENZTHLAZYL-2-SULPHEN) IMIDE 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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |