Patent US2919102A successfully refreshed from Google Patents.
US2919102A
Expired / Lapsed
US
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Fluid amplifiers
Assignee: Individual
•
Filing: 1954-03-01
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Granted: 1959-12-29
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Expires: 1974-03-01
Abstract
No abstract record available.
Inventors
- 👤 Melville F Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:08
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1153681A
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US2111855A
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US2376711A
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US2302014A
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US2520468A
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US2648345A
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US2569762A
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US2573522A
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US2675819A
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US2659381A
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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) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |