US2737894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial type pump with stationary cylinders
Assignee: Oilgear Co
•
Filing: 1952-08-15
•
Granted: 1956-03-13
•
Expires: 1972-08-15
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/08; F04B1/00; F04B1/12; F04B1/122; F04B1/124; F04B1/14; F04B1/141; F04B1/143; F04B1/146; F04B1/148; F04B1/18; F04B1/26; F04B1/28; F04B1/29; F04B1/295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US113787A
Cited
US956016A
Cited
US2288768A
Cited
FR956823A
Cited
US2608933A
Cited
US2433222A
Cited
US2553655A
Cited
US2661700A
Cited
US2619041A
Cited
US2653543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |