US3587602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flueric lag-lead circuit
Assignee: General Electric Co
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Filing: 1969-02-24
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Granted: 1971-06-28
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Expires: 1989-02-24
Abstract
Abstract A PUSH-PULL FLUERIC LAG-LEAD CIRCUIT IS DISCLOSED WHICH INCORPORATES A FLUID AMPLIFIER IN IS FORWARD LOOP AND A PAIR OF POSITIVE FEEDBACK PATHS FROM THE OUTPUT OF THE FLUID AMPLIFIER TO THE CONTROL PORT. THE POSITIVE FEEDBACK PATH COMPRISES A PAIR OF FLOW RESISTANCES IN SERIES WITH EACH OTHER AND WITH A VOLUME WHICH PROVIDES A CAPACITANCE TO GROUND.
Inventors
- 👤 Thomas F Urbanosky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:01
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/14; F15C1/146; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125; Y10T137/2142
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |