US2589635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical process
Assignee: New York University
•
Filing: 1945-03-13
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Granted: 1952-03-18
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Expires: 1965-03-13
Abstract
No abstract record available.
Inventors
- 👤 Gilbert B L Smith
- 👤 Morton W Leeds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:16
CPC Classifications
C; C25; C25B; C25B3/00; C25B3/20; C25B3/25; C25B3/01; C25B3/07; C25B3/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE PROCESS WHICH COMPRISES ELECTROLYTICALLY REDUCING A NITRO-ALKANOL TO THE CORRESPONDING ALKANOL HYDROXYLAMINE IN THE PRESENCE OF AN AQUEOUS INORGANIC ACID CATHOLYTE, USING BOTH POSTIVE AND NEGATIVE ELECTRODES CONSISITING ESSENTIALLY OF HIGH OVERVOLTAGE METAL HAVING AN OVERVOLTAGE VALUE AT LEAST AS HIGH AS THAT OF TIN, AND A CATHOLYTE CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF SULFURIC ACID OF ABOUT 3 TO 10% CONCENTRATION BY WEIGHT, AT A TEMPERATURE OF ABOUT TO 35* C.
Claim 2
Dependent Claim
74 words
THE PROCESS WHICH COMPRISES ELECTROLYTICALLY REDUCING A NITRO-ALKANOL TO THE CORRESPONDING ALKANOL HYDROXYLAMINE IN THE PRESENCE OF AN AQUEOUS INORGANIC ACID CATHOLYTE, USING BOTH POSTIVE AND NEGATIVE ELECTRODES CONSISITING ESSENTIALLY OF HIGH OVERVOLTAGE METAL HAVING AN OVERVOLTAGE VALUE AT LEAST AS HIGH AS THAT OF TIN, AND A CATHOLYTE CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF SULFURIC ACID OF ABOUT 3 TO 10% CONCENTRATION BY WEIGHT, AT A TEMPERATURE OF ABOUT TO 35* C.
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) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |