US3367911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardened epoxide polymers
Assignee: Scholven Chemie AG
•
Filing: 1966-05-06
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Granted: 1968-02-06
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Expires: 1986-05-06
Abstract
No abstract record available.
Inventors
- 👤 Daum Gerhard
- 👤 Janssen Paul
- 👤 Richtzenhain Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:00
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
IN A HARDENED EPOXY RESIN COMPOSITION, WHEREIN SAID RESIN CONTAINS A MAJOOR PROPORTION OF AT LEAST ONE COMPOUND CONTAINING AT LEAST TWO OXIRANE LINKAGES THEREIN, WITH AN AMINE HARDENING AGENT; THE IMPROVEMENT WHICH COMPRISES PROVIDING AS AT LEAST THE MAJOR CONSTITUENT OF SAID HARDENING AGENT 3,5,5-TRIMETHYL-3-AMINOMETHYL CYCLOHEXYLAMINE.
Claim 2
Dependent Claim
47 words
IN A HARDENED EPOXY RESIN COMPOSITION, WHEREIN SAID RESIN CONTAINS A MAJOOR PROPORTION OF AT LEAST ONE COMPOUND CONTAINING AT LEAST TWO OXIRANE LINKAGES THEREIN, WITH AN AMINE HARDENING AGENT; THE IMPROVEMENT WHICH COMPRISES PROVIDING AS AT LEAST THE MAJOR CONSTITUENT OF SAID HARDENING AGENT 3,5,5-TRIMETHYL-3-AMINOMETHYL CYCLOHEXYLAMINE.
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) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |