US3288708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating sewage with iodine
Assignee: Chilean Nitrate Corp
•
Filing: 1964-11-27
•
Granted: 1966-11-29
•
Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 Harry J Cordle
- 👤 Alfred C Loonam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:45
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F1/766
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS FOR TREATING AQUEOUS SEWAGE CONTAINING ORGANIC MATTER COMPRISING: (A) TREATING THE SEWAGE WITH ELEMENTAL IODINEL (B) PROVIDING WITHIN SAID SEWAGE A WATER-SOLUBLE IODATE, SAID WATER-SOLUBLE IODATE BEING PROVIDED TO REGENERATE IODINE FROM IODIDE WHICH HAS FORMED DURING SAID TREATMENT, SAID IODATE BEING PROVIDED IN AN AMOUNT THAT IS AT LEAST ABOUT FOUR TIMES THE STOICHIOMETRIC AMOUNT REQUIRED TO REACH WITH ALL THE IODINE THAT CAN BE PRODUCED FROM THE IODINE; AND (C) MAINTAINING THE PH OF SAID SEWAGE AT A POINT WHERE IODIDE WILL REACT WITH IODATE TO RELEASE ELEMENTAL IODINE.
Claim 2
Dependent Claim
93 words
A PROCESS FOR TREATING AQUEOUS SEWAGE CONTAINING ORGANIC MATTER COMPRISING: (A) TREATING THE SEWAGE WITH ELEMENTAL IODINEL (B) PROVIDING WITHIN SAID SEWAGE A WATER-SOLUBLE IODATE, SAID WATER-SOLUBLE IODATE BEING PROVIDED TO REGENERATE IODINE FROM IODIDE WHICH HAS FORMED DURING SAID TREATMENT, SAID IODATE BEING PROVIDED IN AN AMOUNT THAT IS AT LEAST ABOUT FOUR TIMES THE STOICHIOMETRIC AMOUNT REQUIRED TO REACH WITH ALL THE IODINE THAT CAN BE PRODUCED FROM THE IODINE; AND (C) MAINTAINING THE PH OF SAID SEWAGE AT A POINT WHERE IODIDE WILL REACT WITH IODATE TO RELEASE ELEMENTAL IODINE.
References Cited (Backward Citations)
US2918400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |