Patent US3553739A successfully refreshed from Google Patents.
US3553739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flushing mechanism for commodes
Assignee: Individual
•
Filing: 1968-05-15
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Granted: 1971-01-12
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Expires: 1988-05-15
Abstract
Abstract A LOW COST PRESSURE FLUSHING MECHANISM FOR COMMODES WHICH MAY BE USED AS AN INITIAL INSTALLATION OR REPLACEMENT UNIT IN EXISTING TANKS. THE MECHANISM MAY ALSO BE HOUSED WITHIN A WALL TO SUPPLY ONE OR MORE WALL MOUNTED COMMODE UNITS. THE MAXIMUM EFFECT OF CITY WATER MAIN PRESSURE IS UTILIZED THROUGH THE PROVISION IN THE MECHANISM OF A COLLAPSIBLE AND EXPANSIBLE BLADDER WHICH FACILITATES THE ENTRY OF WATER INTO THE TANK UP TO A DESIRED LEVEL.
Inventors
- 👤 Walter K Owens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:46
CPC Classifications
E; E03; E03D; E03D3/00
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |