US2693201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1950-08-14
•
Granted: 1954-11-02
•
Expires: 1970-08-14
Abstract
No abstract record available.
Inventors
- 👤 John S Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:22
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86509; Y10T137/86718; Y10T137/86759; Y10T137/86928; Y10T137/87265; Y10T137/87322; Y10T137/8741; Y10T137/87491
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1650077A
Cited
US1755993A
Cited
US1991214A
Cited
US1998913A
Cited
US2182278A
Cited
US2265496A
Cited
US2369025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |