US3096253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzyme production
Assignee: Ethicon Inc
•
Filing: 1957-11-25
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Granted: 1963-07-02
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Expires: 1977-11-25
Abstract
No abstract record available.
Inventors
- 👤 Koh Won Young
- 👤 Ralph A Messing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:24
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/48; C12N9/50; C12N9/58; C12N9/62; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/913; Y10S435/915; Y10S435/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A METHOD FOR PRODUCING KERATINOLYTIC ENZYMES WHICH COMPRISES AEROBICALY CULTIVATING A KERATINASEPRODUCING STRAIN OF FUNGI SELECTED FROM THE GROUP CONSISTING OF ASPERGILLUS FLAVUS, ATCC NO. 13003, ABD ASPERGILLUS NIGER, ATCC NO. 13004, IN A SEMI-SYNTHETIC AQUEOUS NUTRIENT MEDIUM CONTAINING A SOURCE OF PROTEIN RICH IN SULFUR-CONTAINING AMINO ACIDS AND DISULFIDE BONDS AND INORGANIC SALTS.
Claim 2
Independent Claim
54 words
A METHOD FOR PRODUCING KERATINOLYTIC ENZYMES WHICH COMPRISES AEROBICALY CULTIVATING A KERATINASEPRODUCING STRAIN OF FUNGI SELECTED FROM THE GROUP CONSISTING OF ASPERGILLUS FLAVUS, ATCC NO. 13003, ABD ASPERGILLUS NIGER, ATCC NO. 13004, IN A SEMI-SYNTHETIC AQUEOUS NUTRIENT MEDIUM CONTAINING A SOURCE OF PROTEIN RICH IN SULFUR-CONTAINING AMINO ACIDS AND DISULFIDE BONDS AND INORGANIC SALTS.
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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |