US2792196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spherical plug valve
Assignee: ACF Industries Inc
•
Filing: 1951-06-28
•
Granted: 1957-05-14
•
Expires: 1971-06-28
Abstract
No abstract record available.
Inventors
- 👤 Clade Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:29
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0668
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1331025A
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US1672394A
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US1973418A
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US2083584A
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US2333424A
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US2401856A
Cited
FR895194A
Cited
US2558260A
Cited
US2516947A
Cited
US2616512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |