Patent US3256239A successfully refreshed from Google Patents.
US3256239A
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US
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Compositions comprising a polyepoxide and an adduct of a hydroxyalkyl alkylene polyamine with an acrylate
Assignee: Union Carbide Corp
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Filing: 1960-10-14
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Granted: 1966-06-14
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Expires: 1980-10-14
Abstract
No abstract record available.
Inventors
- 👤 Frank L Williamson
- 👤 Anthony R Olivo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:48
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/54; C08G59/5006; C08G59/52; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1379; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A CURABLE COMPOSITION CONSISTING ESSENTIALLY OF A POLYEPOXIDE HAVING AN EPOXY EQUIVALENCY OF GREATER THAN ONE WHEREIN THE OXYGEN OF EACH EPOXY GROUP IS ATTACHED TO VICINAL CARBON ATOMS AND A REACTION PRODUCT OF A HYDROXYALKYL ALKYLENE POLYAMINE THE GENERAL FORMULA:
Claim 2
Dependent Claim
41 words
A CURABLE COMPOSITION CONSISTING ESSENTIALLY OF A POLYEPOXIDE HAVING AN EPOXY EQUIVALENCY OF GREATER THAN ONE WHEREIN THE OXYGEN OF EACH EPOXY GROUP IS ATTACHED TO VICINAL CARBON ATOMS AND A REACTION PRODUCT OF A HYDROXYALKYL ALKYLENE POLYAMINE THE GENERAL FORMULA:
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |