US2945444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump
Assignee: DYNEX Inc
•
Filing: 1957-09-23
•
Granted: 1960-07-19
•
Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 William R Leissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:52
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/122; F04B1/124; F04B1/14; F04B1/141; F04B1/143; F04B1/18; F04B49/00; F04B49/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2344565A
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US2345634A
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US2395964A
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US2370506A
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US2458294A
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US2570698A
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GB646371A
Cited
US2672101A
Cited
US2715875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |