US3128228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tissue culture medium
Assignee: Ustav Ser A Ockovacich Latek
•
Filing: 1961-02-27
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Granted: 1964-04-07
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Michl Jiri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:46
CPC Classifications
C; C12; C12N; C12N5/00; C12N5/0018; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS OF GROWING A TISSUE CULTURE WHICH COMPRISES INOCULATING A TISSUE CULTURE MEDIUM INCLUDING A NUTRIENT SOLUTION, AND FURTHER CONTAINING AS A GROWTH PROMOTING CONSTITUENT AN ACTIVE ALPHA GLOBULIN FRACTION HAVING AN ELETROPHORETIC MOBILITY OF 4.55X10**5 TO 4.75X10**6 CM.2/V. SEC., SAID MEDIUM BEING SUBSTANTIALLY FREE OF OTHER ACTIVE ALPHA GLOBULINS, WITH TISSUE CELLS.
Claim 2
Dependent Claim
54 words
A PROCESS OF GROWING A TISSUE CULTURE WHICH COMPRISES INOCULATING A TISSUE CULTURE MEDIUM INCLUDING A NUTRIENT SOLUTION, AND FURTHER CONTAINING AS A GROWTH PROMOTING CONSTITUENT AN ACTIVE ALPHA GLOBULIN FRACTION HAVING AN ELETROPHORETIC MOBILITY OF 4.55X10**5 TO 4.75X10**6 CM.2/V. SEC., SAID MEDIUM BEING SUBSTANTIALLY FREE OF OTHER ACTIVE ALPHA GLOBULINS, WITH TISSUE CELLS.
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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |