US2716945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable stroke rotary cylinder pump
Assignee: Bendix Aviation Corp
•
Filing: 1952-10-17
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Granted: 1955-09-06
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Expires: 1972-10-17
Abstract
No abstract record available.
Inventors
- 👤 Frank G Presnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:34
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/0404; F04B1/0452; F04B1/0465; F04B1/06; F04B1/07; F04B23/00; F04B23/04; F04B23/06; F04B49/00; F04B49/12; F04B49/123; F04B49/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1994989A
Cited
US2130298A
Cited
GB569658A
Cited
US2406138A
Cited
US2324291A
Cited
US2467916A
Cited
US2512025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |