US2505809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic actuator mechanism
Assignee: Babcock and Wilcox Co
•
Filing: 1946-11-07
•
Granted: 1950-05-02
•
Expires: 1966-11-07
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Svenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:31
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; Y; Y10; Y10S; Y10S60/00; Y10S60/911; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8242; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/87096
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |