US2935503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of nisin
Assignee: Aplin and Barrett Ltd
•
Filing: 1958-06-02
•
Granted: 1960-05-03
•
Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Hawley Henry Bernard
- 👤 Hall Ronald Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:24
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/195; C07K14/315; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/8215; Y10S435/822; Y10S435/885; Y10S530/00; Y10S530/82; Y10S530/825; Y10S530/827; Y10S530/832; Y10S530/833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PROCESS FOR THE PRODUCTION OF A NISIN PREPARATION FROM A LIQUID CULTURE MEDIUM CONTAINING NISIN AND MILK CASEINOGEN, COMPRISING THE STEPS OF PRECIPITATING THE CASEINOGEN IN SAID CULTURE MEDIUM AS A CURD, BRINGING THE PH OF THE LIQUID IN CONTACT WITH THE CURD TO A VALUE NOT GREATER THAN 4.5, SEPARATING THE CURD FROM THE LIQUID, ADDING A FOAMING AGENT TO SAID LIQUID IN A QUANTITY UP TO 0.1%, AND PASSING A GAS THROUGH SUCH LIQUID TO PRODUCE A FOAM IN WHICH THE NISIN CONTENT OF THE LIQUID IS CONCENTRATED.
Claim 2
Dependent Claim
91 words
A PROCESS FOR THE PRODUCTION OF A NISIN PREPARATION FROM A LIQUID CULTURE MEDIUM CONTAINING NISIN AND MILK CASEINOGEN, COMPRISING THE STEPS OF PRECIPITATING THE CASEINOGEN IN SAID CULTURE MEDIUM AS A CURD, BRINGING THE PH OF THE LIQUID IN CONTACT WITH THE CURD TO A VALUE NOT GREATER THAN 4.5, SEPARATING THE CURD FROM THE LIQUID, ADDING A FOAMING AGENT TO SAID LIQUID IN A QUANTITY UP TO 0.1%, AND PASSING A GAS THROUGH SUCH LIQUID TO PRODUCE A FOAM IN WHICH THE NISIN CONTENT OF THE LIQUID IS CONCENTRATED.
References Cited (Backward Citations)
GB688423A
Cited
US2785108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |