Patent US3869974A successfully refreshed from Google Patents.
Patent US3217337A successfully refreshed from Google Patents.
US3217337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet bowl assembly
Assignee: Mission West Manufacturing Co
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Filing: 1961-12-19
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Granted: 1965-11-16
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Expires: 1981-12-19
Abstract
No abstract record available.
Inventors
- 👤 Robert F O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:17
CPC Classifications
E; E03; E03D; E03D11/00; E03D5/00; E03D5/012; E03D5/02; E03D5/026; E03D5/08; Y; Y02; Y02A; Y02A10/00; Y02A10/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
192 words
A DELAYED CLOSING VALVE OF THE CHARACTER DESCRIBED COMPRISING: A VALVE BODY; A MOVABLE WALL DIVIDING THE INTERIOR OF THE VALVE BODY INTO A CONTROL CHAMBER AND A VALVE CHAMBER, SAID VALVE CHAMBER HAVING AN INLET PORT FOR COMMUNICATION WITH A SOURCE OF WATER UNDER PRESSURE AND HAVING AN OUTLET PORT TO RECEIVE WATER FROM SAID INLET PORT, SAID MOVABLE WALL BEING NORMALLY IN CLOSED POSITION CLOSING SAID OUTLET PORT, SAID MOVABLE WALL HAVING A PORT IN COMMUNICATION WITH SAID OUTLET PORT; A VALVE MEMBER IN SAID CONTROL CHAMBER NORMALLY SEATED IN AND CLOSING SAID PORT OF THE MOVABLE WALL; YIELDING MEANS IN SAID CONTROL CHAMBER URGING SAID VALVE MEMBER TOWARDS SAID PORT IN THE MOVABLE WALL, SAID CONTROL CHAMBER HAVING A BLEEDER PORT IN COMMUNICATION WITH SAID SOURCE OF WATER WHEREBY THE FLUID PRESSURE IN TWO CHAMBERS EQUALIZES WHEN SAID VALVE MEMBER IS SEATED IN SAID PORT OF THE MOVABLE WALL WITH THE MOVABLE WALL CLOSING SAID OUTLET PORT; AND A CAGE FOR SAID VALVE MEMBER POSITIONED IN THE PATH OF MOVEMENT OF SAID MOVABLE WALL AWAY FROM SAID OUTLET PORT TO LIMIT THE RANGE OF MOVEMENT OF THE MOVABLE WALL.
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |