US2847182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve structure
Assignee: HYDRA POWER CORP
•
Filing: 1952-01-31
•
Granted: 1958-08-12
•
Expires: 1972-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph J Maucusi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:34
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/42; F16K1/422; F16K1/425; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US565682A
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US763208A
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US937221A
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US1157196A
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US1608424A
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US2524951A
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US2431437A
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US2583539A
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US2621011A
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US2722402A
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US2703584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |