US3460846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston ring
Assignee: TRW Automotive Products Inc
•
Filing: 1967-02-09
•
Granted: 1969-08-12
•
Expires: 1987-02-09
Abstract
No abstract record available.
Inventors
- 👤 Earl O Schmidt
- 👤 Roy D Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:48
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/06; F16J9/064; F16J9/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2568655A
Cited
US2621989A
Cited
US2656230A
Cited
US2664328A
Cited
US2685484A
Cited
US2817563A
Cited
DE1079402B
Cited
GB881932A
Cited
US3355180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |