US3410832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the copol ymerization of lauric lactam and caprolactam
Assignee: Inventa AG fuer Forschung und Patentverwertung
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Filing: 1965-01-29
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Granted: 1968-11-12
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Expires: 1985-01-29
Abstract
No abstract record available.
Inventors
- 👤 Griehl Wolfgang
- 👤 Schaaf Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:32
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA582517A
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US2241321A
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US3015652A
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US3017392A
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US3216976A
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US3171829A
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US3321447A
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US3317482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |