US2839488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing epoxy resins and furfural-ketone reaction products
Assignee: Harvel Research Corp
•
Filing: 1957-10-18
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Granted: 1958-06-17
•
Expires: 1977-10-18
Abstract
No abstract record available.
Inventors
- 👤 Mortimer T Harvey
- 👤 Peter L Rosamilia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:54
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A COMPOSITION OF MATTER OBTAINED BY MAKING A MIXTURE OF MATERIAL B LIQUID AT 300*F. AND SELECTED FROM THE GROUP CONSISTING OF MONOMERIC AND POLYMERIC GLYCIDYL ETHERS OF POLYHYDRIC PHENOLS AND ALIPHATIC POLYHYDRIC ALCOHOLS AND MATERIAL A LIQUID AT 300*F. AND SELECTED FROM THE GROUP CONSISTING OF (A) FURFURAL-KETONE ORGANIC REACTION PRODUCTS AND (B) HOMOPOLYMERS OF (A) AND SUBJECTING SAID MIXTURE TO THE ACTION OF AN AMINE.
Claim 2
Dependent Claim
67 words
A COMPOSITION OF MATTER OBTAINED BY MAKING A MIXTURE OF MATERIAL B LIQUID AT 300*F. AND SELECTED FROM THE GROUP CONSISTING OF MONOMERIC AND POLYMERIC GLYCIDYL ETHERS OF POLYHYDRIC PHENOLS AND ALIPHATIC POLYHYDRIC ALCOHOLS AND MATERIAL A LIQUID AT 300*F. AND SELECTED FROM THE GROUP CONSISTING OF (A) FURFURAL-KETONE ORGANIC REACTION PRODUCTS AND (B) HOMOPOLYMERS OF (A) AND SUBJECTING SAID MIXTURE TO THE ACTION OF AN AMINE.
References Cited (Backward Citations)
US2461510A
Cited
US2506486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |