US2988487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating keratinaceous material and a keratinase produced thereby
Assignee: Rutgers Research and Educational Foundation
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Filing: 1957-08-29
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Granted: 1961-06-13
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Expires: 1977-08-29
Abstract
No abstract record available.
Inventors
- 👤 Walter J Nickerson
- 👤 Joseph J Noval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:44
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/48; C12N9/50; C12N9/52; A; A23; A23J; A23J3/00; A23J3/30; A23J3/32; A23J3/34; A23J3/341; Y; Y10; Y10S; Y10S435/00; Y10S435/814; Y10S435/816; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE PROCESS OF TREATING KERATINACEOUS MATERIAL TO PRODUCE USEFUL PROTEIN DEGRADATION PRODUCTS, SAID PROCESS COMPRISING THE STEPS OF GROWING A CULTURE OF STREPTOMYCES FRADIAE IN AN AQUEOUS MEDIUM CONTAINING KERATINACEOUS MATERIAL IN THE PRESENCE OF AT LEAST TRACE AMOUNTS OF CHELATABLE METAL IONS, WHILE MAINTAINING THE PH OF SAID MEDIUM IN THE RANGE OF ABOUT 7 TO ABOUT 10, AND MAINTAINING THE TEMPERATURE OF SAID MEDIUM IN THE RANGE OF ABOUT 20* TO ABOUT 40*C., AND RECOVERING WATERSOLUBLE PROTEIN DEGRADATION PRODUCTS OF THE AFORESAID PROCESS.
Claim 2
Dependent Claim
85 words
THE PROCESS OF TREATING KERATINACEOUS MATERIAL TO PRODUCE USEFUL PROTEIN DEGRADATION PRODUCTS, SAID PROCESS COMPRISING THE STEPS OF GROWING A CULTURE OF STREPTOMYCES FRADIAE IN AN AQUEOUS MEDIUM CONTAINING KERATINACEOUS MATERIAL IN THE PRESENCE OF AT LEAST TRACE AMOUNTS OF CHELATABLE METAL IONS, WHILE MAINTAINING THE PH OF SAID MEDIUM IN THE RANGE OF ABOUT 7 TO ABOUT 10, AND MAINTAINING THE TEMPERATURE OF SAID MEDIUM IN THE RANGE OF ABOUT 20* TO ABOUT 40*C., AND RECOVERING WATERSOLUBLE PROTEIN DEGRADATION PRODUCTS OF THE AFORESAID PROCESS.
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) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |