US3529630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined stop and control valve
Assignee: Westinghouse Electric Corp
•
Filing: 1968-04-11
•
Granted: 1970-09-22
•
Expires: 1988-04-11
Abstract
No abstract record available.
Inventors
- 👤 Leaman B Podolsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:34
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/44; F16K39/00; F16K39/02; F16K39/024; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86968; Y10T137/86976; Y10T137/87096; Y10T137/87121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US321913A
Cited
US987801A
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US1867195A
Cited
US2633857A
Cited
US2561214A
Cited
US3055350A
Cited
US3428090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |