US2999032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of amylose solutions
Assignee: Vasco Ind Corp
•
Filing: 1959-01-27
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Granted: 1961-09-05
•
Expires: 1979-01-27
Abstract
No abstract record available.
Inventors
- 👤 Dekker Adriaan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:13
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/20; C08B33/00; D; D01; D01F; D01F9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR PREPARING A SOLUTION OF A MEMBER FROM THE GROUP CONSISTING OF: MATERIAL CONSISTING ESSENTIALLY OF AMYLOSE, AND MIXTURES OF AMYLOSE AND AMYLOPECTIN, COMPRISING THE STEP OF: DISSOLVING SAID MEMBER AT FROM ROOM TEMPERATURE UP TO 100*C. IN AN AQUEOUS SOLUTION CONTAINING AT LEAST 6% BY WEIGHT OF A SOLUTE FROM THE GROUP CONSISTING OF: FORMALDEHYDE AND GLYOXAL, WHEREBY UPON DISSOLUTION OF SAID MEMBER, A CLEAR, STABLE TRUE SOLUTION IS OBTAINED.
Claim 2
Dependent Claim
73 words
A PROCESS FOR PREPARING A SOLUTION OF A MEMBER FROM THE GROUP CONSISTING OF: MATERIAL CONSISTING ESSENTIALLY OF AMYLOSE, AND MIXTURES OF AMYLOSE AND AMYLOPECTIN, COMPRISING THE STEP OF: DISSOLVING SAID MEMBER AT FROM ROOM TEMPERATURE UP TO 100*C. IN AN AQUEOUS SOLUTION CONTAINING AT LEAST 6% BY WEIGHT OF A SOLUTE FROM THE GROUP CONSISTING OF: FORMALDEHYDE AND GLYOXAL, WHEREBY UPON DISSOLUTION OF SAID MEMBER, A CLEAR, STABLE TRUE SOLUTION IS OBTAINED.
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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) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |