US3474077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the vulcanization of polymers
Assignee: Dunlop Co Ltd
•
Filing: 1966-06-17
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Granted: 1969-10-21
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Expires: 1986-06-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond T Woodhams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:03
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/06; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/334; C08G65/3348; C08K; C08K5/00; C08K5/36; C08K5/39; Y; Y10; Y10S; Y10S525/00; Y10S525/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2193773A
Cited
US2421352A
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US2604462A
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US2905655A
Cited
US3031439A
Cited
US3206417A
Cited
US3222326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |