US3557388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine toilet sewage system
Assignee: Individual
•
Filing: 1970-02-09
•
Granted: 1971-01-26
•
Expires: 1990-02-09
Abstract
Abstract A MARINE TOILET INCLUDES A CHAMBER IN WHICH WASTE PRODUCTS ARE MIXED WITH A CHEMICAL. THE CHAMBER BREAKS UP SOLID WASTE. THE INLET AND OUTLET PIPES TO THE CHAMBER HAVE OPERATIVE VALVES WHICH CLOSE THE CHAMBER. A FLEXIBLE DIAPHRAGM THEN ACTS DIRECTLY UPON THE LIQUID IN THE CHAMBER.
Inventors
- 👤 Bert Bach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:50
CPC Classifications
B; B63; B63B; B63B29/00; B63B29/16
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |