Patent US3352834A successfully refreshed from Google Patents.
US3352834A
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US
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Condensation products of 3-aminomethyl-3, 5, 5-trialkyl-1-cyclohexylamine and aliphatic dicarboxylic acid and cyclic carboxylic acid
Assignee: Scholven Chemie AG
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Filing: 1964-11-10
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Granted: 1967-11-14
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Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 Schmitt Karl
- 👤 Disteldorf Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:01
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/265
Claims Analysis
Total Claims: 0
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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 |