US2530210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of enzymes in submerged cultures of bacteria
Assignee: Rohm and Haas Co
•
Filing: 1947-01-23
•
Granted: 1950-11-14
•
Expires: 1967-01-23
Abstract
No abstract record available.
Inventors
- 👤 Carl V Smythe
- 👤 Drake Billy Blandin
- 👤 Clifford E Neubeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:15
CPC Classifications
C; C12; C12N; C12N9/00; Y; Y10; Y10S; Y10S435/00; Y10S435/818; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/839
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD FOR PRODUCING PROTEOLYTIC AND AMYLOLYTIC ENZYMES BY SUBMERGED CULTURE WHICH COMPRISES GROWING AT TEMPERATURES OF 30* TO 40* C. AND AT A PH BETWEEN SIX AND NINE ENZYMEPRODUCING STRAINS OF BACTERIA SELECTED FROM THE CLASS CONSISTING OF BACILIUS MESENTERICUS AND BACILLUS SUBTILIS IN AN AQUEOUS MEDIUM CONTAINING STARCH AND PROTEIN AND HAVING DISPERSED THEREIN DISCRETE PARTICLES OF BROKEN CEREAL GRAIN, SUPPLYING SAID MEDIUM WITH GASEOUS OXYGEN AT A RATE AT LEAST TWICE AS GREAT AS THE RATE OF CONSUMPTION AS SHOWN BY EVOLEMENT OF CARBON DIOXIDE, SWEEPING OUT CARBON DIOXIDE, AND MECHANICALLY AGITATING THE AQUEOUS MEDIUM TO MAINTAIN PRACTICALLY UNIFORM CONDITIONS THROUGHOUT SAID MEDIUM.
Claim 2
Independent Claim
106 words
A METHOD FOR PRODUCING PROTEOLYTIC AND AMYLOLYTIC ENZYMES BY SUBMERGED CULTURE WHICH COMPRISES GROWING AT TEMPERATURES OF 30* TO 40* C. AND AT A PH BETWEEN SIX AND NINE ENZYMEPRODUCING STRAINS OF BACTERIA SELECTED FROM THE CLASS CONSISTING OF BACILIUS MESENTERICUS AND BACILLUS SUBTILIS IN AN AQUEOUS MEDIUM CONTAINING STARCH AND PROTEIN AND HAVING DISPERSED THEREIN DISCRETE PARTICLES OF BROKEN CEREAL GRAIN, SUPPLYING SAID MEDIUM WITH GASEOUS OXYGEN AT A RATE AT LEAST TWICE AS GREAT AS THE RATE OF CONSUMPTION AS SHOWN BY EVOLEMENT OF CARBON DIOXIDE, SWEEPING OUT CARBON DIOXIDE, AND MECHANICALLY AGITATING THE AQUEOUS MEDIUM TO MAINTAIN PRACTICALLY UNIFORM CONDITIONS THROUGHOUT SAID 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) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |