US2640807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of waste disposal
Assignee: Individual
•
Filing: 1949-03-10
•
Granted: 1953-06-02
•
Expires: 1969-03-10
Abstract
No abstract record available.
Inventors
- 👤 Cyrus W Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:04
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/722; C02F2101/00; C02F2101/10; C02F2101/16; C02F2101/18; C02F2101/20; C02F2101/22; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/903; Y10S210/904; Y10S210/918; Y10S210/919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
THE METHOD OF TREATING TWO WASTE WATERS FROM INDUSTRIAL OPERATIONS WHICH WATERS RESPECTIVELY CONTAIN IN SOLUTION DIVERSE TOXIC SUBSTANCES, THE SAID DISSOLVED SUBSTANCE IN ONE SAID WATER EXCEEDING THAT OF THE OTHER WATER IN TOXICITY, THE REACTIONS FOR RENDERING WHICH TOXIC SUBSTANCES HARMLESS INVOLVING AT LEAST ONE COMMON REAGENT, BY FLOWING THE SAID SOLUTIONS FROM VOLUMES OF SUPPLY THEREOF TO REACTION CHAMBERS THEREFOR, THROUGHOUT THE FLOW OF SAID SOLUTIONS SUPPLYING TO EACH THEREOF REACTIVE MATERIAL CONTAINING THE COMMON REAGENT CAPABLE OF RENDERING THE TOXIC SUBSTANCE OF THE SAID SOLUTION HARMLESS BY REACTION THEREWITH, THE AMOUNT OF REACTION MATERIAL ADDED BEING SUFFICIENT TO SUPPLY A SUBSTANTIAL EXCESS OF SAID COMMON REAGENT TO THE SOLUTION CONTAINING THE TOXIC SUBSTANCE OF GREATER TOXICITY, FLOWING EFFLUENT CONTAINING EXCESS OF THE SAID COMMON REAGENT FROM THE REACTION CHAMBER FOR THE SOLUTION HAVING A TOXIC CON-
Claim 2
Independent Claim
140 words
THE METHOD OF TREATING TWO WASTE WATERS FROM INDUSTRIAL OPERATIONS WHICH WATERS RESPECTIVELY CONTAIN IN SOLUTION DIVERSE TOXIC SUBSTANCES, THE SAID DISSOLVED SUBSTANCE IN ONE SAID WATER EXCEEDING THAT OF THE OTHER WATER IN TOXICITY, THE REACTIONS FOR RENDERING WHICH TOXIC SUBSTANCES HARMLESS INVOLVING AT LEAST ONE COMMON REAGENT, BY FLOWING THE SAID SOLUTIONS FROM VOLUMES OF SUPPLY THEREOF TO REACTION CHAMBERS THEREFOR, THROUGHOUT THE FLOW OF SAID SOLUTIONS SUPPLYING TO EACH THEREOF REACTIVE MATERIAL CONTAINING THE COMMON REAGENT CAPABLE OF RENDERING THE TOXIC SUBSTANCE OF THE SAID SOLUTION HARMLESS BY REACTION THEREWITH, THE AMOUNT OF REACTION MATERIAL ADDED BEING SUFFICIENT TO SUPPLY A SUBSTANTIAL EXCESS OF SAID COMMON REAGENT TO THE SOLUTION CONTAINING THE TOXIC SUBSTANCE OF GREATER TOXICITY, FLOWING EFFLUENT CONTAINING EXCESS OF THE SAID COMMON REAGENT FROM THE REACTION CHAMBER FOR THE SOLUTION HAVING A TOXIC CON-
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |