US2386735A
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Method of diene polymerization
Assignee: Wingfoot Corp
•
Filing: 1940-08-03
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Granted: 1945-10-09
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Expires: 1960-08-03
Abstract
No abstract record available.
Inventors
- 👤 Alvin M Borders
- 👤 William D Wolfe
- 👤 Harold J Osterhof
- 👤 Charles W Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:51
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F236/00; C08F236/02; C08F236/04; C08F236/06; C08F36/00; C08F36/02; C08F36/04; C08F4/00; C08F4/28; Y; Y10; Y10S; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 0
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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) | 1948-10-08 | 1949-04-09 | 1949-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-08 | 1953-04-09 | 1953-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-08 | 1957-04-09 | 1957-10-09 | $7700.00 | Window Closed / Lapsed |