US2624587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1949-08-30
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Granted: 1953-01-06
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Expires: 1969-08-30
Abstract
No abstract record available.
Inventors
- 👤 Edwin D Watson
- 👤 James D Creek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:42
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/066; F16K2200/00; F16K2200/20; F16K2200/203; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7559; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7904; Y10T137/7922; Y10T137/7925; Y10T137/7929; Y10T137/7936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR14722E
Cited
GB191028864A
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AT73838B
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US1376484A
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US1551697A
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US1502734A
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US1651235A
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US2000691A
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US2041970A
Cited
US2192193A
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US2118435A
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US2471294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |