Patent US3723304A successfully refreshed from Google Patents.
US3723304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omniological filter and process
Assignee: Individual
•
Filing: 1970-03-24
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Granted: 1973-03-27
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Expires: 1990-03-24
Abstract
Abstract SOLID AND SOLUBLE POLLUTANTS ARE REMOVED FROM WATER BY MEANS OF AN APPARATUS AND A PROCESS WHEREIN THE WATER IS FILTERED THROUGH PADS OF LIVING MARINE THREAD-ALGAE IN THE PRESENCE OF LIGHT ENERGY ENTRAPPING SOLID POLLUTANTS AND REMOVING SOLUBLE POLLUTANTS BY PHOTOSYNTHESIS.
Inventors
- 👤 H Storck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:03
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/045
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |