US3128255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxide compositions
Assignee: Union Carbide Corp
•
Filing: 1958-11-24
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Granted: 1964-04-07
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Expires: 1978-11-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles W Mcgary
- 👤 Jr Charles T Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:00
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/10; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/26; C08G59/40; C08G59/50; C08L; C08L63/00; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A CURABLE COMPOSITION COMPRISING 3,9-BIS(1,2-EPOXY1-METHYLETHYL)SPIROBI(META-DIOXANE) AND A POLYFUNCTIONAL AMINE CONTAINING AT LEAST TWO ACTIVE AMINO HYDROGEN ATOMS AND SELECTED FROM THE GROUP CONSISTING OF METHYLENEDIANILINE, DIETHYLENETRIAMINE, XYLYENEDIAMINE, ETHYLENEDIAMINE AND HEXANEDIAMINE.
Claim 2
Dependent Claim
30 words
A CURABLE COMPOSITION COMPRISING 3,9-BIS(1,2-EPOXY1-METHYLETHYL)SPIROBI(META-DIOXANE) AND A POLYFUNCTIONAL AMINE CONTAINING AT LEAST TWO ACTIVE AMINO HYDROGEN ATOMS AND SELECTED FROM THE GROUP CONSISTING OF METHYLENEDIANILINE, DIETHYLENETRIAMINE, XYLYENEDIAMINE, ETHYLENEDIAMINE AND HEXANEDIAMINE.
References Cited (Backward Citations)
US2895962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |