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US2729222A
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Manual-automatic apparatus for fluid pressure control
Assignee: Elsag Bailey Inc
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Filing: 1951-10-15
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Granted: 1956-01-03
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Expires: 1971-10-15
Abstract
No abstract record available.
Inventors
- 👤 Paul S Dickey
- 👤 Harry E Weaver
- 👤 Harvard H Gorrie
- 👤 Jack F Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:26
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; Y; Y10; Y10S; Y10S137/00; Y10S137/90; Y10T; Y10T137/00; Y10T137/2278; Y10T137/8593; Y10T137/86389; Y10T137/86397
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |