US3773752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of microbial polysaccharides
Assignee: Phillips Petroleum Co
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Filing: 1971-02-25
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Granted: 1973-11-20
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Expires: 1991-02-25
Abstract
Abstract A METHOD OF RECOVERING MICROBIAL POLYSACCHARIDES PRODUCED FROM THE FERMENTATION OF CARBOHYDRATES BY THE ACTION OF THE BACTERIA OF THE GENUS XANTHOMONAS IN WHICH THE FERMENTOR LIQUOR IS DILUTED WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL SALT, THE RESULTING SOLUTION BEING COAGULATED AND FILTERED AND THE RESULTING SOLUTION OF POLYSACCHARIDES IS RECOVERED.
Inventors
- 👤 B Buchanan
- 👤 J Cottle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:02
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/04; C12P19/06; C08; C08B; C08B37/00; C08B37/0006; C08B37/0024; C08B37/0033; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/8215; Y10S435/822; Y10S435/91; Y10S507/00; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 0
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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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |