US2764487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nutritive yeast products
Assignee: Individual
•
Filing: 1953-03-13
•
Granted: 1956-09-25
•
Expires: 1973-03-13
Abstract
No abstract record available.
Inventors
- 👤 Lynferd J Wickerham
- 👤 Calvin C Kuehner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:25
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/14; C12N1/16; Y; Y10; Y10S; Y10S435/00; Y10S435/804; Y10S435/8215; Y10S435/911; Y10S435/921; Y10S435/93; Y10S435/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE METHOD OF PRODUCING YEAST FOOD PREPARATIONS COMPRISING CULTIVATING AN AMYLASE-PRODUCING YEAST OF THE GROUP CONSISTING OF ENDOMYCOPSIS FIBULIGER AND ENDOMYCOPSIS (CANDIDA) CHODATI IN A CULTURE MEDIUM COMPRISING AN AMYLACEOUS MATERIAL AS CHIEF SOURCE OF ASSIMILABLE CARBON, AND A SOURCE OF ASSIMILABLE NITROGEN, MAINTAINING SAID CULTURE MEDIUM IN A CONDITION OF SUBSTANTIAL AERATION AND AGITATION UNTIL A SUBSTANTIAL QUANTITY OF THE AMYLACEOUS MATERIAL HAS BEEN UTILIZED BY THE YEAST ORGANISMS, AND RECOVERING THE INSOLUBLES INCLUDING YEAST CELLS FROM THE CULTURE MEDIUM.
Claim 2
Independent Claim
81 words
THE METHOD OF PRODUCING YEAST FOOD PREPARATIONS COMPRISING CULTIVATING AN AMYLASE-PRODUCING YEAST OF THE GROUP CONSISTING OF ENDOMYCOPSIS FIBULIGER AND ENDOMYCOPSIS (CANDIDA) CHODATI IN A CULTURE MEDIUM COMPRISING AN AMYLACEOUS MATERIAL AS CHIEF SOURCE OF ASSIMILABLE CARBON, AND A SOURCE OF ASSIMILABLE NITROGEN, MAINTAINING SAID CULTURE MEDIUM IN A CONDITION OF SUBSTANTIAL AERATION AND AGITATION UNTIL A SUBSTANTIAL QUANTITY OF THE AMYLACEOUS MATERIAL HAS BEEN UTILIZED BY THE YEAST ORGANISMS, AND RECOVERING THE INSOLUBLES INCLUDING YEAST CELLS FROM THE CULTURE MEDIUM.
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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |