Patent US2888041A successfully refreshed from Google Patents.
US2888041A
Expired / Lapsed
US
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Valve construction
Assignee: Individual
•
Filing: 1956-06-28
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Granted: 1959-05-26
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Expires: 1976-06-28
Abstract
No abstract record available.
Inventors
- 👤 Alfred M Moen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:37
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/056; F16K11/0565; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/87072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1224090A
Cited
US1507973A
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US2028844A
Cited
US1882953A
Cited
US1991621A
Cited
US2373702A
Cited
US2609206A
Cited
US2630136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |