Patent US3000791A successfully refreshed from Google Patents.
US3000791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spore cultivation
Assignee: Bayer Corp
•
Filing: 1958-03-25
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Granted: 1961-09-19
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Expires: 1978-03-25
Abstract
No abstract record available.
Inventors
- 👤 Leonard B Schweiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:54
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/08; C12N; C12N3/00; C12P; C12P7/00; C12P7/40; C12P7/44; C12P7/48; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/913; Y10S435/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD OF PREPARING INOCULA FOR USE IN THE SUBMERGED FERMENTATION OF CITRIC ACID WHICH COMPRISES INOCULATING STERILIZED CORN BRAN WITH SPORES OF ASPERGILLUS NIGER IN THE PRESENCE OF SUFFICIENT STERILE WATER TO WET THE BRAN, AND INCUBATING THE RESULTING MIXTURE IN THE PRESENCE OF AIR UNTIL A SUBSTANTIAL CROP OF THE SPORES HAS BEEN PRODUCED.
Claim 2
Independent Claim
56 words
A METHOD OF PREPARING INOCULA FOR USE IN THE SUBMERGED FERMENTATION OF CITRIC ACID WHICH COMPRISES INOCULATING STERILIZED CORN BRAN WITH SPORES OF ASPERGILLUS NIGER IN THE PRESENCE OF SUFFICIENT STERILE WATER TO WET THE BRAN, AND INCUBATING THE RESULTING MIXTURE IN THE PRESENCE OF AIR UNTIL A SUBSTANTIAL CROP OF THE SPORES HAS BEEN PRODUCED.
References Cited (Backward Citations)
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Cited
GB348214A
Cited
US2047669A
Cited
US2278236A
Cited
US2352168A
Cited
US2385283A
Cited
US2476159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |