US3399166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silica pigment reinforced hydrocarbon rubber compounded stocks and vulcanizates thereof and processes for producing the same
Assignee: Individual
•
Filing: 1965-08-16
•
Granted: 1968-08-27
•
Expires: 1985-08-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Oliver W Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:58
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/36; C08K9/00; C08K9/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |