Patent US3602159A successfully refreshed from Google Patents.
Patent US2000966A successfully refreshed from Google Patents.
US2000966A
Expired / Lapsed
US
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Regulating valve
Assignee: Elsag Bailey Inc
•
Filing: 1931-11-17
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Granted: 1935-05-14
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Expires: 1951-11-17
Abstract
No abstract record available.
Inventors
- 👤 Charles E Lucke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:59
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2657; Y10T137/2663; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/8774
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) | 1938-05-13 | 1938-11-12 | 1939-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-13 | 1942-11-12 | 1943-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-13 | 1946-11-12 | 1947-05-14 | $7700.00 | Window Closed / Lapsed |