Patent US2565742A successfully refreshed from Google Patents.
US2565742A
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Fluid pressure control device
Assignee: Individual
•
Filing: 1946-08-13
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Granted: 1951-08-28
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Expires: 1966-08-13
Abstract
No abstract record available.
Inventors
- 👤 George H Sailers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:39
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/08; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7934; Y10T137/7935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2155718A
Cited
US2397472A
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US2274093A
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US2297044A
Cited
US2282987A
Cited
US2411667A
Cited
US2374922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |