Patent US3187003A successfully refreshed from Google Patents.
US3187003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zwitterions of 1-(2-aminoethylimidazolines)
Assignee: Armour and Co
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Filing: 1961-06-19
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Granted: 1965-06-01
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph J Mcbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:38
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/16; C09; C09K; C09K3/00; C09K3/16; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
A PROCESS FOR PREPARING ZWITTERIONS OF 1-(2-AMINOEHYL) -2-HEPTADECENYL IMIDAZOLINE, COMPRISING MIXING 1(2-AMINOETHYL)-2-HEPTADECENYL IMIDAZOLINE WITH A 2% EXCESS OF AN ALPHA-B-UNSATURATED CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF CROTONIC, ACRYLIC, AND METHACRYLIC ACID, AND HEATING THE MIXTURE TO REACTION TEMPERATURE UNTIL THE REACTION IS SUBSTANTIALLY COMPLETE.
Claim 2
Dependent Claim
46 words
A PROCESS FOR PREPARING ZWITTERIONS OF 1-(2-AMINOEHYL) -2-HEPTADECENYL IMIDAZOLINE, COMPRISING MIXING 1(2-AMINOETHYL)-2-HEPTADECENYL IMIDAZOLINE WITH A 2% EXCESS OF AN ALPHA-B-UNSATURATED CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF CROTONIC, ACRYLIC, AND METHACRYLIC ACID, AND HEATING THE MIXTURE TO REACTION TEMPERATURE UNTIL THE REACTION IS SUBSTANTIALLY COMPLETE.
Claim 3
Dependent Claim
6 words
THE INNER ZWITTERION OF N-(2-(2-HEPTADENCENYL-2-IMIDAZOLIN-1-YL)ETHYL)-B-AMINOPROPIONIC ACID.
Claim 4
Dependent Claim
6 words
THE INNER ZWITTERION OF N-(2-(2-HEPTADENCENYL-2-IMIDAZOLIN-1-YL)ETHYL)-B-AMINOPROPIONIC ACID.
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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |