US4350769A
Expired / Lapsed
US
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Klebsiella pneumoniae, ATCC 31488
Assignee: Merck and Co Inc
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Filing: 1981-07-13
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Granted: 1982-09-21
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Expires: 2001-07-13
Abstract
Abstract A novel polysaccharide S-53, having a composition of 18-19% uronic acid, 4.8% pyruvate, and 7% acetyl as the O-glycosidically linked ester; and the remainder neutral sugar, 51% glucose and 49% fucose. This polysaccharide is produced by the strain of Klebsiella pneumoniae, ATCC No. 31488 growing in a suitable fermentation medium.
Inventors
- 👤 Kenneth S. Kang
- 👤 George T. Veeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:15
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/04; C12N; C12N1/00; C12N1/20; C12N1/205; C09; C09D; C09D7/00; C09D7/40; C09D7/43; C08; C08L; C08L5/00; C12R; C12R2001/00; C12R2001/01; C12R2001/22; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/852
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
The biologically pure lyophilized culture of a strain of Klebsiella pneumoniae, ATCC 31488.
Claim 2
Dependent Claim
13 words
The biologically pure lyophilized culture of a strain of Klebsiella pneumoniae, ATCC 31488.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-20 | 1986-03-22 | 1986-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-20 | 1990-03-22 | 1990-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-20 | 1994-03-22 | 1994-09-21 | $7700.00 | Window Closed / Lapsed |