Patent US3008532A successfully refreshed from Google Patents.
Patent US2823189A successfully refreshed from Google Patents.
US2823189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide-epoxy resin reaction product
Assignee: General Mills Inc
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Filing: 1953-07-15
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Granted: 1958-02-11
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Expires: 1973-07-15
Abstract
No abstract record available.
Inventors
- 👤 Don E Floyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:17
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
COMPOSITION OF MATTER COMPRISING AN EPOXY RESINOUS MATERIAL CONTAINING TERMINAL EPOXY GROUPS DERIVED FROM A POLYHYRIC PHENOL AND EPICHLOROHYDRIN AND HAVING AN EPOXIDE EQUIVALENCY IN THE RANGE OF 190 TO 2000, AND A POLYMERIC POLYAMIDE DERIVED FROM A MIXTURE OF POLYMERIC FAT ACIDS AND DIMERIZED ROSIN AND A POLYALKYLENE POLYAMINE SAID POLYAMIDE CONTTAINING FREE AMINE GROUPS.
Claim 2
Dependent Claim
56 words
COMPOSITION OF MATTER COMPRISING AN EPOXY RESINOUS MATERIAL CONTAINING TERMINAL EPOXY GROUPS DERIVED FROM A POLYHYRIC PHENOL AND EPICHLOROHYDRIN AND HAVING AN EPOXIDE EQUIVALENCY IN THE RANGE OF 190 TO 2000, AND A POLYMERIC POLYAMIDE DERIVED FROM A MIXTURE OF POLYMERIC FAT ACIDS AND DIMERIZED ROSIN AND A POLYALKYLENE POLYAMINE SAID POLYAMIDE CONTTAINING FREE AMINE GROUPS.
References Cited (Backward Citations)
US2450940A
Cited
US2589245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |