US2609367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gum reaction product and processes
Assignee: Ohio State University Research Foundation
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Filing: 1948-08-30
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Granted: 1952-09-02
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Expires: 1968-08-30
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Gaver
- 👤 Esther P Lasure
- 👤 Levi M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:44
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/006; C08B37/0087
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A PROCESS OF TREATING A HETEROPOLYSACCHARIDE GUM SELECTED FROM THE GROUP CONSISTING OF GUAR GUM, LOCUST BEAN GUM, GUM ARABIC, AND KARAYA GUM WHICH COMPRISES REPLACING THE HYDROGEN ATOM OF THE HYDROXYL GROUP WHICH IS ADJACENT TO THE CARBONYL GROUP BY AN ALKALI METAL ATOM BY TREATING SAID HETEROPOLYSACCHARIDE GUM WITH A NON-AQUEOUS ALCOHOLIC SOLUTION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF THE ALKALI METAL ALCOHOLATES AND THE ALKALI METAL HYDROXIDES AT A TEMPERATURES OF FROM 80* C. TO ABOUT 115* C.
References Cited (Backward Citations)
US2294925A
Cited
US2397732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |