US2567853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of vulcanizing rubber and product thereof
Assignee: Monsanto Chemicals Ltd
•
Filing: 1949-12-16
•
Granted: 1951-09-11
•
Expires: 1969-12-16
Abstract
No abstract record available.
Inventors
- 👤 Morgan William Mcgillivray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:53
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR VULCANIZING A RUBBER WHICH COMPRISES HEATING THE RUBBER CONTAINING SULFUR AND AN ORGANIC ACCELERATOR IN THE PRESENCE OF A SMALL AMOUNT OF A VULCANIZATION RETARDER SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROGEN SULFATES CONTAINING AT LEAST EIGHT BUT NOT MORE THAN EIGHTEEN CARBON ATOMS AND ZINC, CALCIUM AND ALUMINUM SALTS THEREOF.
Claim 2
Dependent Claim
55 words
A PROCESS FOR VULCANIZING A RUBBER WHICH COMPRISES HEATING THE RUBBER CONTAINING SULFUR AND AN ORGANIC ACCELERATOR IN THE PRESENCE OF A SMALL AMOUNT OF A VULCANIZATION RETARDER SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROGEN SULFATES CONTAINING AT LEAST EIGHT BUT NOT MORE THAN EIGHTEEN CARBON ATOMS AND ZINC, CALCIUM AND ALUMINUM SALTS THEREOF.
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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |