Patent US2555445A successfully refreshed from Google Patents.
US2555445A
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US
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Pump control means
Assignee: ZF International UK Ltd
•
Filing: 1945-08-21
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Granted: 1951-06-05
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Expires: 1965-08-21
Abstract
No abstract record available.
Inventors
- 👤 Hooker Stanley George
- 👤 Watson Ernest Ansley
- 👤 Ifield Richard Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:23
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/02; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/1963; Y10T137/1987
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2273670A
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US2292125A
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US2403371A
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US2429005A
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US2407013A
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US2450535A
Cited
US2440663A
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US2424035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |