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US2568356A
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Variable displacement pump
Assignee: Individual
•
Filing: 1948-03-05
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Granted: 1951-09-18
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Expires: 1968-03-05
Abstract
No abstract record available.
Inventors
- 👤 Tony M Moulden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:07
CPC Classifications
F; F04; F04C; F04C14/00; F04C2/00; F04C2/08; F04C2/12; F04C2/14; F04C2/18; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2663
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1141015A
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US1124749A
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US1157783A
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US1723493A
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US1888542A
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US2297234A
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US2210144A
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US2370526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |