US2385537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve operating mechanism
Assignee: Westinghouse Electric Corp
•
Filing: 1942-12-17
•
Granted: 1945-09-25
•
Expires: 1962-12-17
Abstract
No abstract record available.
Inventors
- 👤 George W Pentheny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:54
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/87016; Y10T137/877; Y10T137/87708; Y10T137/87748
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1948-09-24 | 1949-03-26 | 1949-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-24 | 1953-03-26 | 1953-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-24 | 1957-03-26 | 1957-09-25 | $7700.00 | Window Closed / Lapsed |