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US3183255A
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Esters of diphenyl acetohydroxamic and alpha-hydroxy-diphenyl acetohydroxamic acids aith tertiary amino alcohols
Assignee: Universal Oil Products Co
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Filing: 1962-09-17
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Granted: 1965-05-11
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 Levy Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:32
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/20; C07D211/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A COMPOUND OF THE CLASS CONSISTING OF A FREE BASE, ITS ADDITION SALTS WITH NON-TOXIC ACIDS AND LOWER ALKYL QUATERNARY AMMONIUM SALTS, SAID FREE BASE HAVING THE FORMULA:
References Cited (Backward Citations)
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US3072701A
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US1915334A
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US2075359A
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US2801247A
Cited
US3052706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |