Patent US2913012A successfully refreshed from Google Patents.
US2913012A
Expired / Lapsed
US
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Stopper plug valve
Assignee: CHARLES T BASHMAN
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Filing: 1957-12-03
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Granted: 1959-11-17
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Expires: 1977-12-03
Abstract
No abstract record available.
Inventors
- 👤 Edward B Mccurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:25
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/105; F16K; F16K3/00; F16K3/02; F16K3/0263; F16K3/0281; F16K3/16; F16K3/18; F16K3/184; F16K3/186; F16K3/30; F16K3/314; F16L55/12; F16L55/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |