US2449889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid press motor and control valve therefor
Assignee: Individual
•
Filing: 1944-07-25
•
Granted: 1948-09-21
•
Expires: 1964-07-25
Abstract
No abstract record available.
Inventors
- 👤 Eisen Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:44
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/30; B30B15/302; B30B15/304; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1244096A
Cited
US1399169A
Cited
US1445127A
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US1428688A
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US1641131A
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US1655815A
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US1877102A
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US1805056A
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US1920596A
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US1799366A
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US1904112A
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US2067492A
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US2098425A
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US2138047A
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US2259576A
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US2270767A
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US2351058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |