Patent US2963038A successfully refreshed from Google Patents.
US2963038A
Expired / Lapsed
US
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Valve with unitarily removable head and seat
Assignee: Cameron Solutions Inc
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Filing: 1957-11-18
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Granted: 1960-12-06
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Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Chester L Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:10
CPC Classifications
F; F16; F16K; F16K43/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1379389A
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US2732166A
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US951407A
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US925679A
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US1493409A
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US1494543A
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US1899846A
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US2223567A
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US2508843A
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US2856961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |