US3495402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power system
Assignee: JOHN W YATES
•
Filing: 1968-01-18
•
Granted: 1970-02-17
•
Expires: 1988-01-18
Abstract
No abstract record available.
Inventors
- 👤 John W Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:37
CPC Classifications
F; F01; F01K; F01K13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1440000A
Cited
US1886076A
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US1874620A
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US1993585A
Cited
US2379700A
Cited
US2471476A
Cited
US2621481A
Cited
US2714289A
Cited
US2690051A
Cited
US3252286A
Cited
US3323304A
Cited
US3303646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |