US2949933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve structure
Assignee: Individual
•
Filing: 1957-01-07
•
Granted: 1960-08-23
•
Expires: 1977-01-07
Abstract
No abstract record available.
Inventors
- 👤 Alfred M Moen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:52
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/078; F16K11/10; F16K11/14; F16K11/18; F16K3/00; F16K3/02; F16K3/16; F16K3/18; G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/1313; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2668; Y10T137/2693; Y10T137/8593; Y10T137/86493; Y10T137/86549; Y10T137/86815; Y10T137/86823; Y10T137/87249; Y10T137/87571; Y10T137/87676; Y10T137/87917; Y10T137/88038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US262935A
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US1126478A
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CH184261A
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US2132030A
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US2223636A
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US2556780A
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US2684691A
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US2845948A
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US2769454A
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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) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |