US3271267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biochemical synthesis of industrial gums
Assignee: Archer Daniels Midland Co
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Filing: 1964-07-29
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Granted: 1966-09-06
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Expires: 1984-07-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph O Weber
- 👤 Francis E Horan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:49
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/04; C12P19/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN IMPROVED PROCESS FOR MAKING WATER-SOLUBLE GUM WHICH COMPRISES INOCULATING AN AQUEOUS CULTURE MEDIUM CONTAINING CEREAL GRAIN FLOUR AND BUFFER SALT AND HAVING A WEIGHT RATIO OF CARBOHYDRATE TO PROTEIN OF FROM 7/1 TO 15/1 WITH A FERMENTING MICROORGRANISM OF THE GUM PRODUCING PLANT PATHOGEN GENUS XANTHOMONAS, AT LEAST 50 WEIGHT PERCENT OF SAID CARBOHYDRATE BEING PROVIDED BY SAID CEREAL GRAIN FLOUR, INITIALLY ADJUSTING THE PH TO A POINT WITHIN THE RANGE OF 7 TO 8.5, MECHANICALLY AGITATING AND AREATING THE MIXTURE WHILE EFFECTING FERMENTATION OF THE CULTURE MEDIUM AT A TEMPERATURE IN THE RANGE OF ABOUT 21*C. TO 35*C. TO THEREBY PRODUCE A SOLUTION OF WATER SOLUBLE GUM HAVING A SOLUTION VISCOSITY WITHIN THE RANGE OF ABOUT 4,000 TO ABOUT 12,000 CENTIPOISES AT A FINAL PH WITHIN THE RANGE OF FROM 5 TO 7 AND THEREAFTER RECOVERING SAID GUM.
Claim 2
Dependent Claim
140 words
AN IMPROVED PROCESS FOR MAKING WATER-SOLUBLE GUM WHICH COMPRISES INOCULATING AN AQUEOUS CULTURE MEDIUM CONTAINING CEREAL GRAIN FLOUR AND BUFFER SALT AND HAVING A WEIGHT RATIO OF CARBOHYDRATE TO PROTEIN OF FROM 7/1 TO 15/1 WITH A FERMENTING MICROORGRANISM OF THE GUM PRODUCING PLANT PATHOGEN GENUS XANTHOMONAS, AT LEAST 50 WEIGHT PERCENT OF SAID CARBOHYDRATE BEING PROVIDED BY SAID CEREAL GRAIN FLOUR, INITIALLY ADJUSTING THE PH TO A POINT WITHIN THE RANGE OF 7 TO 8.5, MECHANICALLY AGITATING AND AREATING THE MIXTURE WHILE EFFECTING FERMENTATION OF THE CULTURE MEDIUM AT A TEMPERATURE IN THE RANGE OF ABOUT 21*C. TO 35*C. TO THEREBY PRODUCE A SOLUTION OF WATER SOLUBLE GUM HAVING A SOLUTION VISCOSITY WITHIN THE RANGE OF ABOUT 4,000 TO ABOUT 12,000 CENTIPOISES AT A FINAL PH WITHIN THE RANGE OF FROM 5 TO 7 AND THEREAFTER RECOVERING SAID GUM.
References Cited (Backward Citations)
US3020207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |