Patent US2452256A successfully refreshed from Google Patents.
US2452256A
Expired / Lapsed
US
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Fluid handling mechanism
Assignee: Individual
•
Filing: 1939-04-07
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Granted: 1948-10-26
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Expires: 1959-04-07
Abstract
No abstract record available.
Inventors
- 👤 Muller Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:19
CPC Classifications
B; B65; B65B; B65B39/00; Y; Y10; Y10T; Y10T137/00; Y10T137/9029
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US477125A
Cited
US637505A
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US855242A
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US902192A
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US1507015A
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US1428933A
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US1775427A
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US1990741A
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US1890847A
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US1883843A
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US2030143A
Cited
US2124493A
Cited
US2067445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |