US3039932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tissue culturing with arginine, citrulline or aspartic acids supplements to the media
Assignee: Research Corp
•
Filing: 1958-01-07
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Granted: 1962-06-19
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Expires: 1978-01-07
Abstract
No abstract record available.
Inventors
- 👤 William F Mclimans
- 👤 Saul A Schepartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
C; C12; C12N; C12N5/00; C12N5/0018; C12N2500/00; C12N2500/30; C12N2500/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A METHOD OF PROPAGATING MAMMALIAN CELLS WHICH COMPRISIES MAINTAINING DISCRETE MAMMALIAN CELLS IN SUSPENSION IN A NUTRIENT MEDIUM CONTAINING THE KNOWN ESSENTIAL AMINO ACIDS, MINERAL SALTS, VITAMINS, CARBOHYDRATE NUTRIENTS AND MAMMALIAN SERUM AND MAINTAINED AT ABOUT 36-37*C. AND PERIODICALLY ADDING TO THE MEDIUM A COM-
Claim 2
Independent Claim
45 words
A METHOD OF PROPAGATING MAMMALIAN CELLS WHICH COMPRISIES MAINTAINING DISCRETE MAMMALIAN CELLS IN SUSPENSION IN A NUTRIENT MEDIUM CONTAINING THE KNOWN ESSENTIAL AMINO ACIDS, MINERAL SALTS, VITAMINS, CARBOHYDRATE NUTRIENTS AND MAMMALIAN SERUM AND MAINTAINED AT ABOUT 36-37*C. AND PERIODICALLY ADDING TO THE MEDIUM A COM-
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) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |