US2555262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug valve
Assignee: LUDLOW VALVE MANUFACTURING Co Inc
•
Filing: 1945-05-08
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Granted: 1951-05-29
•
Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:27
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US258592A
Cited
US1523953A
Cited
US941351A
Cited
US1484727A
Cited
US1541757A
Cited
US2181059A
Cited
US2118858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |