US2194261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate valve, seat, and packing
Assignee: Cooper Industries LLC
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Filing: 1937-05-07
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Granted: 1940-03-19
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Expires: 1957-05-07
Abstract
No abstract record available.
Inventors
- 👤 Allen Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:06
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-03-19 | 1943-09-18 | 1944-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-19 | 1947-09-18 | 1948-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-19 | 1951-09-18 | 1952-03-19 | $7700.00 | Window Closed / Lapsed |