Patent US3666628A successfully refreshed from Google Patents.
US3666628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for growing microorganisms
Assignee: Standard Brands Inc
•
Filing: 1971-03-19
•
Granted: 1972-05-30
•
Expires: 1991-03-19
Abstract
Abstract UNDER SUBMERGED, AEROBIC CULTURE CONDITIONS, THE MYCELIA OF MANY MICROORGANISMS OF THE STREPTOMYCES GENUS HAVE A TENDENCY TO GROW IN THE FORM OF COMPACT SPHERICAL MASSES. WHEN SMALL AMOUNTS OF AQUEOUS DISPERSIBLE MATERIALS ARE PRESENT IN THE GROWTH MEDIUM, THE MYCELIA PRODUCED WILL BE OF THE FILAMENTOUS FORM. THE PRESENCE OF SUCH MYCELIA WILL RESULT IN RAPID GROWTH OF THE MICROORGANISMS AND IMPROVED ENZYME PRODUCTION. EXAMPLES OF DISPERSIBLE MATERIALS ARE AGAR, CARBOXYMETHYLCELLULOSE, AND DIATOMACEOUS EARTH.
Inventors
- 👤 Robert G Dworschack
- 👤 William R Lamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:20
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/90; C12N9/92; C12N1/00; C12N1/20; C12N1/38; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |