Patent US3561016A successfully refreshed from Google Patents.
US3561016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-saving accessory for toilet flush tanks
Assignee: Individual
•
Filing: 1969-11-07
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Granted: 1971-02-09
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Expires: 1989-11-07
Abstract
Abstract THE FLUSH TANK ACCESSORY DISCLOSED HEREIN PERMITS RELEASING EITHER SUBSTANTIALLY ALL OR A PRESELECTED PORTION OF THE WATER HELD IN A TOILET TANK BY MEANS OF A FLOAT WHICH IS HELD A PREDETERMINED DISTANCE ABOVE THE VALVE MEMBER FOR SELECTIVELY SUPPORTING THAT MEMBER. THE FALLING WATER LEVEL WITHIN THE TANK WILL THEREFORE REDUCE THE SUPPORT ON THE VALVE WHEN THE WATER LEVEL REACHES THE FLOAT THEREBY CAUSING THE VALVE TO CLOSE UNLESS IT IS MANUALLY HELD OPEN THROUGHOUT THE EMPTYING OF THE TANK.
Inventors
- 👤 Burton F Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:55
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34; Y; Y02; Y02A; Y02A20/00; Y02A20/40
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |