Patent US2596281A successfully refreshed from Google Patents.
US2596281A
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Oscillator hydraulic head
Assignee: Individual
•
Filing: 1949-06-03
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Granted: 1952-05-13
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Expires: 1969-06-03
Abstract
No abstract record available.
Inventors
- 👤 Logan M O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:04
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/28; B07B1/284; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344; Y10T74/18544; Y10T74/18552
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1459481A
Cited
US1773405A
Cited
US1735067A
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US1920972A
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US1827586A
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US1923229A
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US2079653A
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US2019547A
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US2008648A
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US2063509A
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US2144382A
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US2188482A
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US2445175A
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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) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |