US3403131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxide resin-acid anhydride compositions containing a hydroxyalkylated aromatic amine accelerator
Assignee: BASF Schweiz AG
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Filing: 1966-11-15
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Granted: 1968-09-24
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Expires: 1986-11-15
Abstract
No abstract record available.
Inventors
- 👤 Garnish Edward William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:01
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08G59/68; C08G59/686
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A HARDENABLE COMPOSITION OF MATTER COMPRISING (1) AN EPOXIDE RESIN HAVING A PLURALITY OF 1,2-EPOXIDE GROUPS, AND (3), AS ACCELERATOR FOR THE HARDENING ACTION, A HYDROXYLATED AROMATIC AMINE CONTAINING, DIRECTLY ATTACHED TO A BENZENE NUCLEUS, AT LEAST ONE RESIDUE OF THE FORMULA I
Claim 2
Dependent Claim
43 words
A HARDENABLE COMPOSITION OF MATTER COMPRISING (1) AN EPOXIDE RESIN HAVING A PLURALITY OF 1,2-EPOXIDE GROUPS, AND (3), AS ACCELERATOR FOR THE HARDENING ACTION, A HYDROXYLATED AROMATIC AMINE CONTAINING, DIRECTLY ATTACHED TO A BENZENE NUCLEUS, AT LEAST ONE RESIDUE OF THE FORMULA I
References Cited (Backward Citations)
US3052650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |