US2737486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic process for producing amines
Assignee: Rohm and Haas Co
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Filing: 1952-04-01
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Granted: 1956-03-06
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Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 George W Bodamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:32
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/422; B01J; B01J47/00; B01J47/12; C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2206; C08J5/2275; C25; C25B; C25B3/00; C25B3/01; C25B3/09; C08J2379/00; C08J2379/04; C08J2379/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE ELECTROLYTIC PROCESS FOR CONVERTING A WATERSOLUABLE ACID SALT OF AN AMINE INTO THE CORRESPONDING FREE AMINE WHICH COMPRISES PASSING A DIRECT CURRENT THROUGH AN ELECTROLYSIS CELL WHICH HAS A CATHODE COMPARTMENT, CONTAINING AN AQUEOUS SOLUTION OF SAID WATER-SOLUBLE AMINE SALT, AND AN ANODE COMPARTMENT, CONTAINING AN ELECTROLYTE, SAID COMPARTMENTS BEING SEPARATED BY AN ANIONIC PERMSELECTIVE FILM WHICH CONTAINS AT LEAST 25% BY WIEGHT OF AN ANION-EXCHANGE RESIN.
Claim 2
Dependent Claim
68 words
THE ELECTROLYTIC PROCESS FOR CONVERTING A WATERSOLUABLE ACID SALT OF AN AMINE INTO THE CORRESPONDING FREE AMINE WHICH COMPRISES PASSING A DIRECT CURRENT THROUGH AN ELECTROLYSIS CELL WHICH HAS A CATHODE COMPARTMENT, CONTAINING AN AQUEOUS SOLUTION OF SAID WATER-SOLUBLE AMINE SALT, AND AN ANODE COMPARTMENT, CONTAINING AN ELECTROLYTE, SAID COMPARTMENTS BEING SEPARATED BY AN ANIONIC PERMSELECTIVE FILM WHICH CONTAINS AT LEAST 25% BY WIEGHT OF AN ANION-EXCHANGE RESIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |