Patent US3017294A successfully refreshed from Google Patents.
US3017294A
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Process for sizing
Assignee: Unilever Bestfoods North America
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Filing: 1958-10-01
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Granted: 1962-01-16
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Expires: 1978-10-01
Abstract
No abstract record available.
Inventors
- 👤 Meisel Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:23
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/28; D21H17/29; C; C08; C08B; C08B31/00; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR SIZING CELLULOSIC SUBSTANCES HAVING COMPRISES CONTACTING THEM IN AN AQUEOUS MEDIUM WITH A STARCH DERIVATIVE CONTAINING NITROGEN AND IN UNSWOLLEN GRANULE FORM; SAID DERIVATIVEBEING MADE BY REACTING, IN CONTACT WITH AN ALKALINE CATALYST UNDER NON-GELATINIZING CONDITIONS STARCH WITH THE REACTION PRODUCT OF EPIHALOHYDRIN AND A COMPOUND FROM THE GROUP CONSISTING OF TERTIARY AMINES AND TERTIARY AMINE SALTS; THE TERTIARY AMINE BEING REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
68 words
A PROCESS FOR SIZING CELLULOSIC SUBSTANCES HAVING COMPRISES CONTACTING THEM IN AN AQUEOUS MEDIUM WITH A STARCH DERIVATIVE CONTAINING NITROGEN AND IN UNSWOLLEN GRANULE FORM; SAID DERIVATIVEBEING MADE BY REACTING, IN CONTACT WITH AN ALKALINE CATALYST UNDER NON-GELATINIZING CONDITIONS STARCH WITH THE REACTION PRODUCT OF EPIHALOHYDRIN AND A COMPOUND FROM THE GROUP CONSISTING OF TERTIARY AMINES AND TERTIARY AMINE SALTS; THE TERTIARY AMINE BEING REPRESENTED BY THE 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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |