US3107747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closet tank fittings with silencing means
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1959-07-27
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Granted: 1963-10-22
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Expires: 1979-07-27
Abstract
No abstract record available.
Inventors
- 👤 Richard G Parkison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:08
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34; E03D1/304; F; F16; F16K; F16K47/00; F16K47/02; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7446; Y10T137/7449; Y10T137/7462; Y10T137/7494
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A TASK REFILL FITTING FOR A CLOSET TANK, SAID FITTING COMPRISING A TUBE OF RELATIVELY LARGE DIAMETER, A COLLAR ENCIRCLING THE UPPER PORTION OF SAID TUBE, SAID COLLAR BEING AFFIXED WATER-TIGHTLY AT ITS LOWER PORTION TO SAID TUBE, EXTENDING UPWARDLY ABOVE THE UPPER END OF SAID TUBE AND TURNING INWARDLY AND DOWNWARDLY INSIDE THE UPPER PORTION OF SAID TUBE TO FORM A DOWNSPOUT, SAID COLLAR AND TUBE DEFINING A SWIRL CHAMBER BETWEEN THEM, SAID DOWNSPOUT AND TUBE DEFINING AN ANNULAR WATER PASSAGEWAY BETWEEN THEM WHICH COMMUNICATES WITH SAID SWIRL CHAMBER, AND A WATER INLET INTO SAID SWIRL CHAMBER, SAID INLET HAVING AN AXIS WHICH IS DIRECTED TANGENTIALLY WITH RESPECT TO SAID SWIRL CHAMBER.
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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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |