Patent US3019804A successfully refreshed from Google Patents.
US3019804A
Expired / Lapsed
US
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Fluid flow and pressure control systems
Assignee: Airco Inc
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Filing: 1959-01-05
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Granted: 1962-02-06
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Expires: 1979-01-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:39
CPC Classifications
B; B64; B64D; B64D10/00; G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; G05D16/185; B64D2010/005; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/2012
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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |