US2740259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for converting gas pressure to hydraulic pressure
Assignee: Raytheon Co
•
Filing: 1952-05-01
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Granted: 1956-04-03
•
Expires: 1972-05-01
Abstract
No abstract record available.
Inventors
- 👤 Westlund Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
F; F15; F15B; F15B3/00; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/40; F15B2201/405; F15B2201/4056; F15B2201/41; F15B2201/415; F15B2201/4155; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/4824; Y10T137/8593; Y10T137/86187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2337771A
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US2351761A
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US2459317A
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US2478958A
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US2621719A
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US2561957A
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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) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |