Patent US3443583A successfully refreshed from Google Patents.
US3443583A
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High impact pressure regulator
Assignee: National Aeronautics and Space Administration
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Filing: 1967-11-27
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Granted: 1969-05-13
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Expires: 1987-11-27
Abstract
No abstract record available.
Inventors
- 👤 Albert Topits Jr
- 👤 Elmer L Floyd
- 👤 John E Biles Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:18
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0647; G05D16/0402; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/599; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7795; Y10T137/7822; Y10T137/7823; Y10T137/7825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |