US4146706A
Expired / Lapsed
US
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Polysaccharide and process for the production thereof
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1977-01-17
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Granted: 1979-03-27
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Expires: 1997-01-17
Abstract
Abstract Polysaccharides forming gels are produced by cultivating a microorganism such as Arthrobacter carbazolum FERM 2574 in a suitable medium.
Inventors
- 👤 Kenichi Hisatsuka
- 👤 Saburo Ishiyama
- 👤 Akira Inoue
- 👤 Osamu Tsumura
- 👤 Mikio Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:06
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/04; C08; C08B; C08B37/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
Polysaccharide having a gel forming property which is characterized by the following properties: (1) comprising (a) glucose, (b) mannose, (c) dihydrostreptose and (d) 3-O-(1'-carboxyethyl)-L-rhamnose, the molar ratio of said constituents being (a):(b):(c):(d) = 10:10:1-3:3-8; and (2) containing an O-acetyl group in an amount of from 8 to 14 weight percent calculated as acetic acid.
Claim 2
Dependent Claim
54 words
Polysaccharide having a gel forming property which is characterized by the following properties: (1) comprising (a) glucose, (b) mannose, (c) dihydrostreptose and (d) 3-O-(1'-carboxyethyl)-L-rhamnose, the molar ratio of said constituents being (a):(b):(c):(d) = 10:10:1-3:3-8; and (2) containing an O-acetyl group in an amount of from 8 to 14 weight percent calculated as acetic acid.
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) | 1982-03-26 | 1982-09-25 | 1983-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-26 | 1986-09-25 | 1987-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-26 | 1990-09-25 | 1991-03-27 | $7700.00 | Window Closed / Lapsed |