US2906670A
Expired / Lapsed
US
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Process of producing gibberellic acid by two stage cultivation of gibberella fujikuroi
Assignee: Imperial Chemical Industries Ltd
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Filing: 1958-01-31
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Granted: 1959-09-29
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Expires: 1978-01-31
Abstract
No abstract record available.
Inventors
- 👤 Borrow Antony
- 👤 Jcfferys Edward Garstang
- 👤 Nixon Ian Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:42
CPC Classifications
C; C12; C12P; C12P27/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
PROCESS FOR THE PRODUCTION OF GIBBERELLIC ACID WHICH COMPRISES CARRYING OUT THE CULTIVATION OF THE MOULD GIBBERELLA FUJIKUROI (FUSARIUM MONILIFORME) IN AT LEAST TWO STAGES, THE FIRST AND ANY INTERMEDIATE STAGES BEING STAGES OF ACTIVE GROWTH OF THE SAID MOULD IN A BALANCED MEDIUM CONTAINING A SOURCE OF CARBON AND NITROGEN, AND THE FINAL STAGE BEING CARRIED OUT IN AN UNBALANCED MEDIUM WHEREIN THE CARBON/NITROGEN RATIO IS HIGHER THAN THE RATIO IN WHICH CARBOB AND NITROGEN ARE USED UP BY THE MOULD DURING ACTIVE GROWTH SO THAT ACTIVE GROWTH IS CHECKED AND GIBBERELLIC ACID IS PRODUCED.
Claim 2
Dependent Claim
96 words
PROCESS FOR THE PRODUCTION OF GIBBERELLIC ACID WHICH COMPRISES CARRYING OUT THE CULTIVATION OF THE MOULD GIBBERELLA FUJIKUROI (FUSARIUM MONILIFORME) IN AT LEAST TWO STAGES, THE FIRST AND ANY INTERMEDIATE STAGES BEING STAGES OF ACTIVE GROWTH OF THE SAID MOULD IN A BALANCED MEDIUM CONTAINING A SOURCE OF CARBON AND NITROGEN, AND THE FINAL STAGE BEING CARRIED OUT IN AN UNBALANCED MEDIUM WHEREIN THE CARBON/NITROGEN RATIO IS HIGHER THAN THE RATIO IN WHICH CARBOB AND NITROGEN ARE USED UP BY THE MOULD DURING ACTIVE GROWTH SO THAT ACTIVE GROWTH IS CHECKED AND GIBBERELLIC ACID IS PRODUCED.
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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |