US2963038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve with unitarily removable head and seat
Assignee: Cameron Solutions Inc
•
Filing: 1957-11-18
•
Granted: 1960-12-06
•
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 09:10
CPC Classifications
F; F16; F16K; F16K43/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1379389A
Cited
US2732166A
Cited
US951407A
Cited
US925679A
Cited
US1493409A
Cited
US1494543A
Cited
US1899846A
Cited
US2223567A
Cited
US2508843A
Cited
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 |