Patent US3250296A successfully refreshed from Google Patents.
US3250296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single lever valve with preadjustment temperature control
Assignee: Individual
•
Filing: 1963-09-30
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Granted: 1966-05-10
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Perlman Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:07
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/087; F16K11/10; F16K11/14; F16K11/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/87056; Y10T137/8708
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
IN A VALVE, A BODY HAVING A CONVEXEDLY DOMED UPPER END WHOSE SURFACE IS FORMED AS A VALVE SEAT AND HAVING TWO GENERALLY PARALLEL BORES OPENING TO SAID SEAT TO PROVIDE PORTS THEREIN; AND ALSO HAVING AN ANNULAR SEALING ZONE OUTSIDE SAID SEAT; SAID PORTS BEING INLET PORTS; AND A PLATE-LIKE VALVE MEMBER HAVING ITS UNDER SURFACE CONCAVE AND OVERLYING SAID SEAT FOR CLOSING OR OPENING SAID INLET PORTS AND BEING SHIFTABLE ACROSS AND ALSO ROTATABLE ON SAID SEAT FOR CLOSING OR OPENING SAID INLET PORTS; SAID VALVE MEMBER HAVING TWO THROUGH OPENINGS FOR REGISTERING WITH SAID INLET PORTS; SAID OPENINGS COM-
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |