US2628809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat for rotary plug valve
Assignee: Dole Valve Co
•
Filing: 1945-02-26
•
Granted: 1953-02-17
•
Expires: 1965-02-26
Abstract
No abstract record available.
Inventors
- 👤 Mikeska Peter Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0457; F16K5/0485; F16K41/00; F16K41/02; F16K41/04; F16K41/043; F16K41/046; F16K5/0464; Y; Y10; Y10S; Y10S251/00; Y10S251/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US743511A
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US1027178A
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US1879481A
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US2337321A
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US2433732A
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US2503639A
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US2375633A
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US2480529A
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US2383983A
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US2392198A
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US2533931A
Cited
US2578396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |