US2950227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferments of the papain type and process of making same
Assignee: Bayer Pharma AG
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Filing: 1959-06-05
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Granted: 1960-08-23
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Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Gibian Heinz
- 👤 Bratfisch Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:17
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/48; C12N9/50; C12N9/63; A; A23; A23L; A23L13/00; A23L13/70; A23L13/72; A23L13/74; Y; Y10; Y10S; Y10S435/00; Y10S435/814; Y10S435/816
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
PROCESS OF PRODUCING HIGHLY PURIFIED FERMENTS SELECTED FROM THE GROUP CONSISTING OF PAPAIN, FICIN AND BROMELIN FROM COMMERCIALLY AVAILABLE CRUDE PREPARATIONS CONTAINING SUCH FERMENTS WHICH AN AQUEOUS INORGANIC ING SAID CRUDE PREPARATION WITH AN AQUEOUS INORGANIC THIOCYANATE SOLUTION AT A TEMPERATURE BELOW ABOUT 50*C., SEPERATING THE RESULTING EXTRA FORM UNDISSOLVED MATTER, AND RECOVERING THE PURIFFIED FERMENTS FORM SAID EXTRACT.
Claim 2
Dependent Claim
59 words
PROCESS OF PRODUCING HIGHLY PURIFIED FERMENTS SELECTED FROM THE GROUP CONSISTING OF PAPAIN, FICIN AND BROMELIN FROM COMMERCIALLY AVAILABLE CRUDE PREPARATIONS CONTAINING SUCH FERMENTS WHICH AN AQUEOUS INORGANIC ING SAID CRUDE PREPARATION WITH AN AQUEOUS INORGANIC THIOCYANATE SOLUTION AT A TEMPERATURE BELOW ABOUT 50*C., SEPERATING THE RESULTING EXTRA FORM UNDISSOLVED MATTER, AND RECOVERING THE PURIFFIED FERMENTS FORM SAID EXTRACT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |