US2992192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxyalkylated polyamines
Assignee: Union Carbide Corp
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Filing: 1957-04-29
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Granted: 1961-07-11
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Expires: 1977-04-29
Abstract
No abstract record available.
Inventors
- 👤 Arthur K Ingberman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:50
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
HARDENABLE COMPOSITION COMPRISING AN OXIRANE EPOXIDE HAVING AN EPOXY EQUIVALENCY OF GREATER THAN ONE SELECTED FROM THE GROUP CONSISTING OF POLYGLYCIDYL ETHERS OF POLYHYDRIC PHENOLS AND N,N-DIGLYCIDYL ANILINE, AND A POLYAMINE CONTAINING AN AROMATIC RING IN ITS STRUCTURE AND HAVING THE FORMULA:
Claim 2
Dependent Claim
42 words
HARDENABLE COMPOSITION COMPRISING AN OXIRANE EPOXIDE HAVING AN EPOXY EQUIVALENCY OF GREATER THAN ONE SELECTED FROM THE GROUP CONSISTING OF POLYGLYCIDYL ETHERS OF POLYHYDRIC PHENOLS AND N,N-DIGLYCIDYL ANILINE, AND A POLYAMINE CONTAINING AN AROMATIC RING IN ITS STRUCTURE AND HAVING THE 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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |