US2938468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump
Assignee: Allis Chalmers Corp
•
Filing: 1957-09-13
•
Granted: 1960-05-31
•
Expires: 1977-09-13
Abstract
No abstract record available.
Inventors
- 👤 Dimitri B Kececioglu
- 👤 Robert A Weber
- 👤 Kiefer Norbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:29
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0096; F04C15/0057; F04C15/008; F04C29/00; F04C29/0042; F04C29/0085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2171460A
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US2256659A
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US2373304A
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US2565651A
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US2482847A
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US2742223A
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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) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |