Patent US2666614A successfully refreshed from Google Patents.
US2666614A
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US
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Valve construction
Assignee: GROVE REGULATOR Co
•
Filing: 1948-05-15
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Granted: 1954-01-19
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Expires: 1968-05-15
Abstract
No abstract record available.
Inventors
- 👤 Grove Marvin Henry
- 👤 Austin U Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:30
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/22; F16K3/24; F16K3/246; B; B60; B60S; B60S9/00; B60S9/02; B60S9/10; B60S9/12; F16K1/00; F16K1/32; F16K1/34; F16K1/46; Y; Y10; Y10S; Y10S251/00; Y10S251/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1385019A
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US2299395A
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US2370964A
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US2414451A
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US2370471A
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US2408000A
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US2431437A
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US2469921A
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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) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |