Patent US2603192A successfully refreshed from Google Patents.
US2603192A
Expired / Lapsed
US
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Hydraulic valve for controlling the flow of fluid to cylinders
Assignee: Individual
•
Filing: 1948-12-01
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Granted: 1952-07-15
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Expires: 1968-12-01
Abstract
No abstract record available.
Inventors
- 👤 John R Kensok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:15
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/86702; Y10T137/86839
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US650777A
Cited
US2105473A
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US2109162A
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US2293906A
Cited
US2415417A
Cited
US2475298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |