US2569766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Lincoln Engineering Co
•
Filing: 1945-01-27
•
Granted: 1951-10-02
•
Expires: 1965-01-27
Abstract
No abstract record available.
Inventors
- 👤 Victor G Klein
- 👤 Lutwin C Rotter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:09
CPC Classifications
F; F16; F16N; F16N25/00; F16N25/02; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/8671; Y10T137/86839
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1036923A
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US1374405A
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US1947409A
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US2215115A
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US2317628A
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US2397589A
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US2410404A
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US2418448A
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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) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |