Patent US2642892A successfully refreshed from Google Patents.
US2642892A
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Pressure reducing valve
Assignee: Power Jets Research and Development Ltd
•
Filing: 1946-09-24
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Granted: 1953-06-23
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Expires: 1966-09-24
Abstract
No abstract record available.
Inventors
- 👤 Simons Archie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:53
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; G05D7/0133; F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K2200/00; F16K2200/30; F16K2200/302; F16K2200/304; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7905; Y10T137/7922; Y10T137/7929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190306518A
Cited
US1439320A
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US1480594A
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US1800127A
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US1830407A
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US1791472A
Cited
AU65131A
Cited
US2005813A
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US2160657A
Cited
US2300466A
Cited
US2254472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |