US3384023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump and method of pumping
Assignee: Individual
•
Filing: 1966-09-19
•
Granted: 1968-05-21
•
Expires: 1986-09-19
Abstract
No abstract record available.
Inventors
- 👤 William L King
- 👤 John F King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:53
CPC Classifications
F; F04; F04D; F04D1/00; F04D1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1110696A
Cited
US2467990A
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US2690130A
Cited
GB671703A
Cited
US2673075A
Cited
DE1005082B
Cited
AT230159B
Cited
US3307485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |