US2580409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating tidal lands subjected to sewage
Assignee: Individual
•
Filing: 1947-12-06
•
Granted: 1952-01-01
•
Expires: 1967-12-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Cornish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:00
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/725
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A SEWAGE DISPOSAL SYSTEM WHEREIN SEWAGE IS DISCHARGED INTO A BODY OF WATER HAVING A MUD BED, THE PROCESS OF INHIBITING THE RELEASE OF HYDROGEN SULPHIDE FORMED BY THE INTERACTION OF ORGANIC MATTER IN SAID SEWAGE AND SULPHATES IN SAID WATER WHICH CONSISTS IN DEPOSITING ON SAID BED OF A CATALYTIC OXIDIZING AGENT OF THE CLASS CONSISTING OF IRON AND SUBSTANTIALLY WATER INSOLUBLE SALTS THEREOF WHICH REACT WITH HYDROGEN SULPHIDE TO FORM AN IRON SULPHIDE, AND CAUSING SAID IRON SULPHIDE TO EACT WITH OXYGEN IN THE WATER OR ATMOSPHERE TO RECONSTITUTE AN IRON COMPOUND WHICH WILL IN TURN AGAIN REACT WITH HYDROGEN SULPHIDE WHEREBY TEH ORIGINAL OXIDIZING AGENT WILL GO INTO AND OUT OF THE CHEMICAL PROCESS OF EACH CYCLE TO COMBINE WITH AND DESTROY HYDROGEN SULPHIDE AS THE LATTER IS GENERATED.
Claim 2
Dependent Claim
133 words
IN A SEWAGE DISPOSAL SYSTEM WHEREIN SEWAGE IS DISCHARGED INTO A BODY OF WATER HAVING A MUD BED, THE PROCESS OF INHIBITING THE RELEASE OF HYDROGEN SULPHIDE FORMED BY THE INTERACTION OF ORGANIC MATTER IN SAID SEWAGE AND SULPHATES IN SAID WATER WHICH CONSISTS IN DEPOSITING ON SAID BED OF A CATALYTIC OXIDIZING AGENT OF THE CLASS CONSISTING OF IRON AND SUBSTANTIALLY WATER INSOLUBLE SALTS THEREOF WHICH REACT WITH HYDROGEN SULPHIDE TO FORM AN IRON SULPHIDE, AND CAUSING SAID IRON SULPHIDE TO EACT WITH OXYGEN IN THE WATER OR ATMOSPHERE TO RECONSTITUTE AN IRON COMPOUND WHICH WILL IN TURN AGAIN REACT WITH HYDROGEN SULPHIDE WHEREBY TEH ORIGINAL OXIDIZING AGENT WILL GO INTO AND OUT OF THE CHEMICAL PROCESS OF EACH CYCLE TO COMBINE WITH AND DESTROY HYDROGEN SULPHIDE AS THE LATTER IS GENERATED.
References Cited (Backward Citations)
GB190009819A
Cited
US1392213A
Cited
US1799444A
Cited
GB421643A
Cited
US2167443A
Cited
US2171203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |