US3745180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of organic materials
Assignee: Imperial Chemical Industries Ltd
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Filing: 1968-10-14
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Granted: 1973-07-10
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Expires: 1988-10-14
Abstract
Abstract A PROCESS FOR REDUCING OR OXIDIZING A SUBSTANTIALLY WATER-IMMISCIBLE ORGANIC SUBSTRATE BY CONTACTING A REAGENT COMPRISING AN AQUEOUS SOLUTION OF A COMPOUND OF VARIABLE VALENCY ELEMENT, IN WHICH THE VARIABLE VALENCY ELEMENT IS IN AN APPROPRIATE OXIDATION STATE, WITH A SOLUTION OF THE ORGANIS SUBSTRATE IN A NON-REACTIVE, WATER-IMMISCIBLE SOLVENT, SEPARATING THE TWO PHASES AFTER REACTION, AND REGENERATING THE REAGENT BY ELECTROLYSIS.
Inventors
- 👤 R Rennie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:37
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/2014; F04B1/2021; C; C07; C07C; C07C45/00; C07C45/27; C07C45/28; C07C45/32; C07C45/33; C07C45/34; C07C45/36; C07C46/00; C07C46/02; C07C46/04; C07C46/06; C07C50/00; C07C50/08; C25; C25B; C25B3/00; C25B3/01; C25B3/07; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
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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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |