Patent US3049331A successfully refreshed from Google Patents.
US3049331A
Expired / Lapsed
US
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Fluid control mechanism
Assignee: FLOW EQUIPMENT Co
•
Filing: 1960-07-25
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Granted: 1962-08-14
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Robert S Quesinberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:07
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/56; F16K31/12; F16K31/18; F16K31/34; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7365; Y10T137/7368; Y10T137/7371
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1580499A
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US2226533A
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US2633865A
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US2668556A
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US2919590A
Cited
US2892644A
Cited
US2867233A
Cited
FR1196890A
Cited
US2936995A
Cited
US2944562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |