Patent US3139437A successfully refreshed from Google Patents.
US3139437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel reaction products of polymeric fat acids and polyamines
Assignee: General Mills Inc
•
Filing: 1960-07-20
•
Granted: 1964-06-30
•
Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Peterson Lowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:42
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0605; C08G73/0616; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/5073; C08G69/00; C08G69/02; C08G69/26; C08G69/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
AN AMINO-POLY-IMIDAZOLINE-AMIDE PREPARED BY REACTING AT TEMPERATURES IN THE RANGE OF 285-315*C. FOR ABOUT 2 HOURS POLYMERIC FAT ACIDS AND AN EXCESS OF AN ALIPHATIC POLYAMINE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
30 words
AN AMINO-POLY-IMIDAZOLINE-AMIDE PREPARED BY REACTING AT TEMPERATURES IN THE RANGE OF 285-315*C. FOR ABOUT 2 HOURS POLYMERIC FAT ACIDS AND AN EXCESS OF AN ALIPHATIC POLYAMINE OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2379413A
Cited
US2324491A
Cited
US2369818A
Cited
US2374354A
Cited
US2646399A
Cited
US2705223A
Cited
US2867592A
Cited
US2839549A
Cited
US2781352A
Cited
US2940927A
Cited
US2918474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |