US3421540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single lever faucet construction
Assignee: Mansfield Sanitary Inc
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Filing: 1966-10-04
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Granted: 1969-01-14
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Expires: 1986-10-04
Abstract
No abstract record available.
Inventors
- 👤 Howard A Fulton
- 👤 Vaughn D Flinner
- 👤 Richard W Sprang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:31
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/18; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668; Y10T137/8593; Y10T137/87056; Y10T137/87088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A SINGLE LEVER FAUCET COMPRISING A HOUSING HAVING BOTTOM WALL WITH WATER INLETS THEREIN, VALVE ASSEMBLY CARTRIDGE COMPRISING A RESILIENT VALVE BLOCK SEATED ON SAID BOTTOM WALL AND HAVING THROUGH PASSAGEWAYS COMMUNICATING WITH SAID WATER INLET, A STEAM GUIDE MEMBER HAVING A BOTTOM RIM ABUTTING SAID VALVE BLOCK AND FORMING A MIXING CHAMBER ABOVE SAID BLOCK, TILTABLE VALVE ELEMENTS IN SAID PASSAGEWAYS FOR NORMALLY CLOSING OFF FLOW THERETHROUGH AND HAVING PORTIONS PROJECTING INTO SAID MIX-
Claim 2
Dependent Claim
75 words
A SINGLE LEVER FAUCET COMPRISING A HOUSING HAVING BOTTOM WALL WITH WATER INLETS THEREIN, VALVE ASSEMBLY CARTRIDGE COMPRISING A RESILIENT VALVE BLOCK SEATED ON SAID BOTTOM WALL AND HAVING THROUGH PASSAGEWAYS COMMUNICATING WITH SAID WATER INLET, A STEAM GUIDE MEMBER HAVING A BOTTOM RIM ABUTTING SAID VALVE BLOCK AND FORMING A MIXING CHAMBER ABOVE SAID BLOCK, TILTABLE VALVE ELEMENTS IN SAID PASSAGEWAYS FOR NORMALLY CLOSING OFF FLOW THERETHROUGH AND HAVING PORTIONS PROJECTING INTO SAID MIX-
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |