US3566415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure discharge waste disposal apparatus
Assignee: Individual
•
Filing: 1969-08-20
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Granted: 1971-03-02
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Expires: 1989-08-20
Abstract
Abstract A PRESSURE DISCHARGE WASTE DISPOSAL DEVICE, SUCH AS A TOILET, FOR USE WHERE WASTE MUST BE DISCHARGED UPWARDLY AGAINST THE FORCE OF GRAVITY OR AGAINST A HEAD OF PRESSURE RESULTING FOR ANY OTHER REASON. SAID DEVICE COMPRISES A CHAMBER FOR RECEIVING WASTE, A VALVE IN THE CHAMBER SHIFT, ABLE TO ONE POSITION TO PERMIT GRAVITATION OF WASTE AND FLOW OF WATER INTO THE CHAMBER, AND SHIFTABLE TO ANOTHER POSITION SO THAT AIR UNDER PRESSURE MAY BE INTRODUCED TO FORCEABLY DISCHARGE THE WASTE AND WATER FROM THE CHAMBER THROUGH A WASTE CONDUIT.
Inventors
- 👤 Duane Culp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:56
CPC Classifications
E; E03; E03D; E03D5/00
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |