US2874074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 2-substituted imidazolinium salt and treatment of cellulosic fibrous materials therewith
Assignee: ChampionX LLC
•
Filing: 1956-05-08
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Granted: 1959-02-17
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Expires: 1976-05-08
Abstract
No abstract record available.
Inventors
- 👤 Carl E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:26
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/35; C; C07; C07D; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/14; C07D233/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
THE METHOD OF TREATING CELLULOSIC FIBROUS MATERIALS WHICH COMPRISES APPLYING THERETO AN AQUEOUS DISPERSION OF A COLLOIDALLY DISPERSIBLE 1,2-SUBSTITUED IMIDAZOLINIUM SALT WHICH CONTAINS AT LEAST TWO AND NOT MORE THAN THREE HIGHER ALIPHATIC HYDROCARBON RADICALS EACH HAVING AT LEAST 11 CARBON ATOMS, ONE OF WHICH HIGHER ALIPHATIC HYDROCARBON RADICALS IS IN THE 2-POSITION OF THE IMIDAZOLINE RING AND ANOTHER OF WHICH IS IN AT LEAST ONE OF THE 1-POSITION OF THE IMIDAZOLINE RING AND THE CATION RADICAL.
Claim 2
Independent Claim
77 words
THE METHOD OF TREATING CELLULOSIC FIBROUS MATERIALS WHICH COMPRISES APPLYING THERETO AN AQUEOUS DISPERSION OF A COLLOIDALLY DISPERSIBLE 1,2-SUBSTITUED IMIDAZOLINIUM SALT WHICH CONTAINS AT LEAST TWO AND NOT MORE THAN THREE HIGHER ALIPHATIC HYDROCARBON RADICALS EACH HAVING AT LEAST 11 CARBON ATOMS, ONE OF WHICH HIGHER ALIPHATIC HYDROCARBON RADICALS IS IN THE 2-POSITION OF THE IMIDAZOLINE RING AND ANOTHER OF WHICH IS IN AT LEAST ONE OF THE 1-POSITION OF THE IMIDAZOLINE RING AND THE CATION RADICAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |