US2547645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump
Assignee: RTX Corp
•
Filing: 1945-11-15
•
Granted: 1951-04-03
•
Expires: 1965-11-15
Abstract
No abstract record available.
Inventors
- 👤 Roger F Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:12
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1037; F04B1/00; F04B1/04; F04B1/0404; F04B1/0443; F04B1/06; F04B1/07; F04B1/10; F04B1/107; F04B1/1071; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/103; F04B23/14; F04B49/00; F04B49/12; F04B49/123; F04B49/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1119972A
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FR629102A
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US1821772A
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US1978441A
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US1974134A
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US2024420A
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US1988875A
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US2130299A
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US2208041A
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US2293693A
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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) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |