Patent US5192313A successfully refreshed from Google Patents.
US2002641A
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Two material extruded valve and method of making the same
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1931-02-13
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Granted: 1935-05-28
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Expires: 1951-02-13
Abstract
No abstract record available.
Inventors
- 👤 Eugene A Mcbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:59
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/20; B21K1/22; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/14; B21C23/22; B21C33/00; B21C33/004; B23; B23P; B23P13/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49298; Y10T29/49307; Y10T29/49309; Y10T29/49311
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-05-27 | 1938-11-26 | 1939-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-27 | 1942-11-26 | 1943-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-27 | 1946-11-26 | 1947-05-28 | $7700.00 | Window Closed / Lapsed |