US5037758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enhanced production of biosurfactant through the use of a mutated B subtilis strain
Assignee: National Research Council Canada
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Filing: 1989-01-11
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Granted: 1991-08-06
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Expires: 2009-01-11
Abstract
Abstract A B. subtilis strain possessing an enhanced surfactin production potential. The strain is a mutant of B. subtilis ATCC 21332 and has at least one mutation between Arg4 and HisA1 sites of the genetic map of B. subtilis ATCC 21332. Also included in the present invention is B. subtilis strain having the identifying characteristics of ATCC 53813.
Inventors
- 👤 Catherine N. Mulligan
- 👤 Terry Y. Chow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:42
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/64; C12P7/6409; C12N; C12N1/00; C12N1/20; C12N1/205; C12N15/00; C12N15/01; C12P7/6436; C12P7/6445; C12P7/6463; C12R; C12R2001/00; C12R2001/01; C12R2001/07; C12R2001/125; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/839
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
36 words
A biologically pure culture of a Bacillus subtilis strain possessing an enhanced surfactant production potential and having at least one mutation between the Arg4 and HisA1 sites of the genetic map of B. subtilis ATCC 21332.
Claim 2
Dependent Claim
36 words
A biologically pure culture of a Bacillus subtilis strain possessing an enhanced surfactant production potential and having at least one mutation between the Arg4 and HisA1 sites of the genetic map of B. subtilis ATCC 21332.
Claim 3
Dependent Claim
20 words
The biologically pure culture of B. subtilis strain of claim 1, wherein the mutation is obtained through ultraviolet light exposure.
Claim 4
Dependent Claim
10 words
A biologically pure culture of Bacillus subtilis strain ATCC 53813.
Claim 5
Dependent Claim
10 words
A biologically pure culture of Bacillus subtilis strain ATCC 53813.
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) | 1994-08-05 | 1995-02-04 | 1995-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-05 | 1999-02-04 | 1999-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-05 | 2003-02-04 | 2003-08-06 | $7700.00 | Window Closed / Lapsed |