Patent US3320136A successfully refreshed from Google Patents.
US3320136A
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Process for preparing a polysaccharide flocculating agent
Assignee: KERR MC GEE OIL IND Inc
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Filing: 1964-05-19
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Granted: 1967-05-16
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Expires: 1984-05-19
Abstract
No abstract record available.
Inventors
- 👤 James E Zajic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:00
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0009; C08B37/0018; C12; C12P; C12P19/00; C12P19/04; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR PREPARING A POLYSACCHARIDE COMPRISING CULTIVATING BLACK YEAST IN AN AQUEOUS FERMENTATION MEDIUM THEREFOR, THE FERMENTATION MEDIUM HAVING AN INITIAL PH VALUE BETWEEN 2 AND LESS THAN 6.0 AND CONTAINING AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF CARBOHYDRATES AND NORMALLY GASEOUS HYDROCARBONS UTILIZED BY THE BLACK YEAST AS A SOURCE OF CARBON, THE BLACK YEAST AND INCLUDING AT LEAST ONE MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF PULLULARIA PULLULANS, DEMATIUM CHODATI, AND CLADOSPORIUM HERBARUM HAVING THE CAPACITY TO SYNTHESIZE A POLYSACCHARIDE MATERIAL HAVING ACTIVITY AS A FLOCCULANT WHEN CULTIVATED IN THE SAID FERMENTATION MEDIUM AND BEING CULTIVATED THEREIN UNTIL A POLYSACCHARIDE FLOCCULANT MATERIAL IS PRODUCED.
Claim 2
Dependent Claim
110 words
A PROCESS FOR PREPARING A POLYSACCHARIDE COMPRISING CULTIVATING BLACK YEAST IN AN AQUEOUS FERMENTATION MEDIUM THEREFOR, THE FERMENTATION MEDIUM HAVING AN INITIAL PH VALUE BETWEEN 2 AND LESS THAN 6.0 AND CONTAINING AT LEAST ONE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF CARBOHYDRATES AND NORMALLY GASEOUS HYDROCARBONS UTILIZED BY THE BLACK YEAST AS A SOURCE OF CARBON, THE BLACK YEAST AND INCLUDING AT LEAST ONE MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF PULLULARIA PULLULANS, DEMATIUM CHODATI, AND CLADOSPORIUM HERBARUM HAVING THE CAPACITY TO SYNTHESIZE A POLYSACCHARIDE MATERIAL HAVING ACTIVITY AS A FLOCCULANT WHEN CULTIVATED IN THE SAID FERMENTATION MEDIUM AND BEING CULTIVATED THEREIN UNTIL A POLYSACCHARIDE FLOCCULANT MATERIAL IS PRODUCED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |