Patent US2686121A successfully refreshed from Google Patents.
US2686121A
Expired / Lapsed
US
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Process of loading cellulosic fibers
Assignee: Morton Chemical Co
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Filing: 1948-07-07
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Granted: 1954-08-10
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Expires: 1968-07-07
Abstract
No abstract record available.
Inventors
- 👤 Henry H Latham
- 👤 Joseph R Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:19
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; D21H23/00; D21H23/76; D21H23/765
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF INCORPORATING RESINOUS MATERIALS WITH NEGATIVELY CHARGED CELLULOSIC FIBRES IN AQUEOUS SUSPENSION WHICH COMPRISES RENDERING THE FIBRES CATIONICALLY ACTIVE BY MIXING THEM WITH AN AQUEOUS SOLUTION OF A CATIONIC ACTIVE AGENT PREPARED BY REACTING 1 TO 3 MOLS OF A MEMBER OF THE GROUP CONSISTING OF ALKYL SULPHATES, PHOSPHATES AND HALIDES HAVING 1 TO 3 CARBON ATOMS IN AN ALKYL GROUP WITH A DEHYDRATED AMIDATION PRODUCT MADE BY CONDENSING IN THE PRESENCE OF HEAT 1 TO 5 MOLS OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF STRAIGHT CHAIN ALKYLENE POLYAMINES HAVING THE GENERAL FORMULA
Claim 2
Independent Claim
97 words
THE METHOD OF INCORPORATING RESINOUS MATERIALS WITH NEGATIVELY CHARGED CELLULOSIC FIBRES IN AQUEOUS SUSPENSION WHICH COMPRISES RENDERING THE FIBRES CATIONICALLY ACTIVE BY MIXING THEM WITH AN AQUEOUS SOLUTION OF A CATIONIC ACTIVE AGENT PREPARED BY REACTING 1 TO 3 MOLS OF A MEMBER OF THE GROUP CONSISTING OF ALKYL SULPHATES, PHOSPHATES AND HALIDES HAVING 1 TO 3 CARBON ATOMS IN AN ALKYL GROUP WITH A DEHYDRATED AMIDATION PRODUCT MADE BY CONDENSING IN THE PRESENCE OF HEAT 1 TO 5 MOLS OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF STRAIGHT CHAIN ALKYLENE POLYAMINES HAVING THE GENERAL FORMULA
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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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |