US3843565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resins consisting essentially of n,n,n',n'-tetraglycidyl bisaminomethylcyclo-hexane
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1973-09-25
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Granted: 1974-10-22
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Expires: 1993-09-25
Abstract
Abstract 1. AN EPOXY RESIN WHICH CONSISTS ESSENTIALY OF N,N, N'',N'' - TETRAGLYCIDYL BISAMINOMETHYLCYCLOHEXANE, AND WHICH HAS A COLORATION DEGREE OF LESS THAN 2 IN TERMS OF THE GARDNER COLOR NUMBER, A VISCOSITY AT 25* C, OF 2,000 TO 8,000 CPS., AN EPOXY EQUIVALENT OF 100 TO 150, AND A HALOGEN CONTENT OF LESS THAN 1.5%.
Inventors
- 👤 Y Yamamoto
- 👤 K Masawaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:58
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/38; C08G59/02; C08G59/10; C08G59/3227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN EPOXY RESIN WHICH CONSISTS ESSENTIALY OF N,N, N'',N'' - TETRAGLYCIDYL BISAMINOMETHYLCYCLOHEXANE, AND WHICH HAS A COLORATION DEGREE OF LESS THAN 2 IN TERMS OF THE GARDNER COLOR NUMBER, A VISCOSITY AT 25* C, OF 2,000 TO 8,000 CPS., AN EPOXY EQUIVALENT OF 100 TO 150, AND A HALOGEN CONTENT OF LESS THAN 1.5%.
Claim 2
Dependent Claim
54 words
AN EPOXY RESIN WHICH CONSISTS ESSENTIALY OF N,N, N'',N'' - TETRAGLYCIDYL BISAMINOMETHYLCYCLOHEXANE, AND WHICH HAS A COLORATION DEGREE OF LESS THAN 2 IN TERMS OF THE GARDNER COLOR NUMBER, A VISCOSITY AT 25* C, OF 2,000 TO 8,000 CPS., AN EPOXY EQUIVALENT OF 100 TO 150, AND A HALOGEN CONTENT OF LESS THAN 1.5%.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |