US3308108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for copolymerizing alpha-olefins with tertiary n-alkylene-arylamines
Assignee: Hercules LLC
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Filing: 1964-10-13
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Granted: 1967-03-07
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Feldhoff Manfred
- 👤 Gumboldt Albert Gustav Martin
- 👤 Helberg Jurgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
C; C08; C08F; C08F26/00; C08F210/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COPOLYMER OF PROPYLENE WITH A TERTIARY N-ALKENYL ARYL AMINE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
14 words
A COPOLYMER OF PROPYLENE WITH A TERTIARY N-ALKENYL ARYL AMINE OF THE GENERAL FORMULA
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |