US2989439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for promoting microbial transformation reactions
Assignee: Individual
•
Filing: 1958-10-10
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Granted: 1961-06-20
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Expires: 1978-10-10
Abstract
No abstract record available.
Inventors
- 👤 Elmer A Weaver
- 👤 Harold E Kenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:17
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/38; C12P; C12P33/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/913; Y10S435/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR THE MICROBIAL TRANSFORMATION OF A CHEMICAL SUBSTRATE COMPRISING CULTURING A SPECIES OF MICROORGANISM IN AN AQUEOUS NUTRIENT MEDIUM UNDER CONDITIONS FAVORABLE TO DEVELOPMENT OF AN ABUNDANT CELL GROWTH, DILUTING A VOLUME OF THE MEDIUM CONTAINING THE ABUNDANT CELL GROWTH WITH ABOUT 9 TO 99 TIMES SAID VOLUME OF PURIFIED WATER, ADDING TO THE DILUTED CULTURE THE CHEMICAL SUBSTRATE TO BE TRANSFORMED, AND CULTURING THE MICROORGANISM UNDER LIMITED NUTRIENT CONDITIONS WHILE CONTACTING THE SUBSTRATE WITH THE CHEMICAL ACTIVITY OF SAID SPECIES OF MICROORGANISM UNTIL THE DESIRED MICROBIAL TRANSFORMATION IS ACHIEVED.
Claim 2
Dependent Claim
92 words
A PROCESS FOR THE MICROBIAL TRANSFORMATION OF A CHEMICAL SUBSTRATE COMPRISING CULTURING A SPECIES OF MICROORGANISM IN AN AQUEOUS NUTRIENT MEDIUM UNDER CONDITIONS FAVORABLE TO DEVELOPMENT OF AN ABUNDANT CELL GROWTH, DILUTING A VOLUME OF THE MEDIUM CONTAINING THE ABUNDANT CELL GROWTH WITH ABOUT 9 TO 99 TIMES SAID VOLUME OF PURIFIED WATER, ADDING TO THE DILUTED CULTURE THE CHEMICAL SUBSTRATE TO BE TRANSFORMED, AND CULTURING THE MICROORGANISM UNDER LIMITED NUTRIENT CONDITIONS WHILE CONTACTING THE SUBSTRATE WITH THE CHEMICAL ACTIVITY OF SAID SPECIES OF MICROORGANISM UNTIL THE DESIRED MICROBIAL TRANSFORMATION IS ACHIEVED.
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) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |