US2914427A
Expired / Lapsed
US
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Polymeric amido imidazolines and their alkylation products, and textiles coated therewith
Assignee: Onyx Oil and Chemical Co
•
Filing: 1956-04-13
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Granted: 1959-11-24
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Expires: 1976-04-13
Abstract
No abstract record available.
Inventors
- 👤 Emery I Valko
- 👤 Giuliana C Tesoro
- 👤 Edward D Szubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:29
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; D06M15/579; C; C08; C08G; C08G69/00; C08G69/48; C08G73/00; C08G73/06; C08G73/0605; C08G73/0616; D06M15/59; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10T; Y10T442/00; Y10T442/20; Y10T442/2418; Y10T442/2459
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A LINEAR BASIC POLYAMIDO IMIDAZOLINE CONTAINING IN THE MOLECULE A REPEATING UNIT OF WHICH THE GENERAL FORMULA IS
Claim 2
Dependent Claim
18 words
A LINEAR BASIC POLYAMIDO IMIDAZOLINE CONTAINING IN THE MOLECULE A REPEATING UNIT OF WHICH THE GENERAL FORMULA IS
References Cited (Backward Citations)
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US2149273A
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US2659681A
Cited
US2483513A
Cited
US2493322A
Cited
US2563289A
Cited
US2635079A
Cited
US2713559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |