US2716944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for pumping a liquid and a lubricant simultaneously
Assignee: Oilgear Co
•
Filing: 1954-05-24
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Granted: 1955-09-06
•
Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:20
CPC Classifications
F; F04; F04B; F04B13/00; F04B13/02; F04B1/00; F04B1/04; F04B1/0404; F04B1/0408; F04B1/0452; F04B1/0465; F04B1/06; F04B1/10; F04B1/107; F04B1/1071; F04B1/1074; F04B1/1077; F04B23/00; F04B23/04; F04B23/06; F04B49/00; F04B49/002; F04B49/12; F04B49/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1506892A
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US1998984A
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US2365234A
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US2256459A
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US2462931A
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US2550966A
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US2608933A
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US2581764A
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US2557508A
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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 |