Patent US3288774A successfully refreshed from Google Patents.
US3288774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of substituted-aminoalkyl alkanolamine and polycarboxylic acid or the like
Assignee: Universal Oil Products Co
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Filing: 1963-12-03
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Granted: 1966-11-29
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Expires: 1983-12-03
Abstract
No abstract record available.
Inventors
- 👤 Henryk A Cyba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:18
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G69/00; C08G69/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
THE COMPOSITION OF MATTER FORMED BY REACTING AT A TEMPERATURE OF FROM ABOUT 80* TO ABOUT 200*C. (1) A SUBSTIUTED-AMINOALKYL ALKANOLAMINE OF THE FOLLOWING FORMULA
Claim 2
Dependent Claim
25 words
THE COMPOSITION OF MATTER FORMED BY REACTING AT A TEMPERATURE OF FROM ABOUT 80* TO ABOUT 200*C. (1) A SUBSTIUTED-AMINOALKYL ALKANOLAMINE OF THE FOLLOWING FORMULA
References Cited (Backward Citations)
US2095814A
Cited
US2085706A
Cited
US2262738A
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US2533723A
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US2540776A
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US2868767A
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US2982750A
Cited
US3043789A
Cited
US3120524A
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 |