US3605808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In-line externally adjustable flow control and needle valve assembly
Assignee: Individual
•
Filing: 1969-06-23
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Granted: 1971-09-20
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Expires: 1989-06-23
Abstract
Abstract A COMPACT IN-LINE FLOW-CONTROL VALVE AND NEEDLE VALVE ASSEMBLY IS DISCLOSED WHEREIN IN AN EXTERNALLY ADJUSTABLE NEEDLE VALVE ELEMENT IS ADJUSTABLE TO PERMIT A PREDETERMINED RESTRICTED FLOW IN BOTH DIRECTIONS OR MAY INCLUDE A SPRING-LOADED BASS ASSEMBLY BY WHICH FLOW IS RESTRICTED IN ONE DIRECTION WITH FREE-FLOW THRU BALL ASSEMBLY WHEN FLOW IS REVERSED.
Inventors
- 👤 Robert M Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:01
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/18; F16K15/182; F16K15/1823; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87378; Y10T137/87394; Y10T137/87539; Y10T137/87547; Y10T137/87555; Y10T137/87563
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |