US3700565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave sewage system with distillation means
Assignee: Kidde Inc
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Filing: 1970-04-03
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Granted: 1972-10-24
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Expires: 1990-04-03
Abstract
Abstract A SELF-CONTAINED SEWAGE SYSTEM IN WHICH A MICROWAVE ENERGY SOURCE IS PROVIDED TO VAPORIZE THE LIQUID HASE OF THE SEWAGE SO THAT IT MAY BE REMOVED FROM THE SYSTEM AND THE INTERVAL BETWEEN SERVICINGS OF THE SYSTEM LENGTHENED. THE SEWAGE IS TRANSFERRED FROM THE SEWAGE RECEIVING TANK TO AN EVAPORATING TANK FOR EVAPORATION AND, IN CERTAIN EMBODIMENTS USED IN SITUATIONS WHERE POWER IS NOT AT A PREMIUM, A PORTION OF THE LIQUID VAPORIZED FROM THE SEWAGE MAY BE RETURNED TO THE SYSTEM FOR FLUSHING PURPOSES.
Inventors
- 👤 Alan H Cornish
- 👤 Robert C Helke
- 👤 Alex N Ledonne
- 👤 Hugh E Masters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/048; B; B01; B01D; B01D3/00; B01D3/006; C02F1/30; C02F1/302; C02F2103/00; C02F2103/005; C02F2201/00; C02F2201/001; C02F2209/00; C02F2209/42; C02F2303/00; C02F2303/02; Y; Y10; Y10S; Y10S159/00; Y10S159/06; Y10S159/26; Y10S159/905; Y10S203/00; Y10S203/05; Y10S203/11; Y10S203/17; Y10S4/00; Y10S4/09
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |