US2705223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting resinous compositions from epoxy resins and polyamides derived from polymeric fat acids
Assignee: General Mills Inc
•
Filing: 1952-03-11
•
Granted: 1955-03-29
•
Expires: 1972-03-11
Abstract
No abstract record available.
Inventors
- 👤 Malcolm M Renfrew
- 👤 Wittcoff Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:48
CPC Classifications
C; C08; C08L; C08L63/00; C08L77/00; C08L77/06; C08L77/08; C09; C09J; C09J177/00; C09J177/06; C09J177/08; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/22; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
COMPOSITION OF MATTER COMPRISING AN EPOXY RESINOUS MATERIAL CONTAINING TERMINAL EPOXY GROUPS AND A POLYMERIC POLYAMIDE CURING AGENT, SAID POLYAMIDE BEING THE REACTION PRODUCT OF POLYMERIC FAT ACIDS CONTAINING AT LEAST 2 CARBOXYL GROUPS. AND AN ALIPHATIC POLYAMINE SAID POLYAMIDE CONTAINING FREE GROUPS SELECTED FROM THE GROUP CONSISTING OF AMINE GROUPS AND CARBOXYL GROUPS.
Claim 2
Dependent Claim
54 words
COMPOSITION OF MATTER COMPRISING AN EPOXY RESINOUS MATERIAL CONTAINING TERMINAL EPOXY GROUPS AND A POLYMERIC POLYAMIDE CURING AGENT, SAID POLYAMIDE BEING THE REACTION PRODUCT OF POLYMERIC FAT ACIDS CONTAINING AT LEAST 2 CARBOXYL GROUPS. AND AN ALIPHATIC POLYAMINE SAID POLYAMIDE CONTAINING FREE GROUPS SELECTED FROM THE GROUP CONSISTING OF AMINE GROUPS AND CARBOXYL GROUPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-28 | 1958-09-27 | 1959-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-28 | 1962-09-27 | 1963-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-28 | 1966-09-27 | 1967-03-29 | $7700.00 | Window Closed / Lapsed |