US3352836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamides from 3-aminomethyl-3, 5, 5-trialkyl-1-cyclohexylamine
Assignee: SCHOVEN CHEMIE AG
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Filing: 1965-01-28
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Granted: 1967-11-14
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Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Schmitt Karl
- 👤 Gude Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:54
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A POLYAMIDE OF A MIXTURE CONSISTING ESSENTIALLY OF 3-AMINOMETHYL-3,5,5-TRIALKYL-1-CYCLOHEXYLAMINE, A DICARBOXYLIC ACID AND AT LEAST ONE DIAMINE SELECTED FROM THE GROUP CONSISTING OF BRANCHED ALIPHATIC DIAMINES, BRANCHED AND STRAIGHT CHAIN AROMATIC DIAMINES AND BRANCHED AND STRAIGHT CHAINED ALICYCLIC DIAMINES.
Claim 2
Dependent Claim
39 words
A POLYAMIDE OF A MIXTURE CONSISTING ESSENTIALLY OF 3-AMINOMETHYL-3,5,5-TRIALKYL-1-CYCLOHEXYLAMINE, A DICARBOXYLIC ACID AND AT LEAST ONE DIAMINE SELECTED FROM THE GROUP CONSISTING OF BRANCHED ALIPHATIC DIAMINES, BRANCHED AND STRAIGHT CHAIN AROMATIC DIAMINES AND BRANCHED AND STRAIGHT CHAINED ALICYCLIC DIAMINES.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |