US3492961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquatic power unit
Assignee: Ametek Inc
•
Filing: 1968-03-13
•
Granted: 1970-02-03
•
Expires: 1988-03-13
Abstract
No abstract record available.
Inventors
- 👤 Jack L Whitener
- 👤 William A Brice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:04
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/12; B; B63; B63C; B63C11/00; B63C11/46; F01M; F01M13/00; F01M13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US953146A
Cited
US1126616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |