US3582469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of double-stranded ribonucleic acid
Assignee: Merck and Co Inc
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Filing: 1968-09-27
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Granted: 1971-06-01
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Expires: 1988-09-27
Abstract
Abstract DOUBLE-STRANDED RIBONUCLEIC ACID IS PRODUCED BY ESCHERICHIA COLI CELLS INFECTED WITH THE MU-9 MUTANT OF MS2 COLIPHAGE AND THE SPECIFIC PRODUCTIVITY IS INCREASED BY THE TIMELY ADDITION OF AN ANTIBILTIC POST-INFECTION.
Inventors
- 👤 Jerome Birnbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:06
CPC Classifications
C; C07; C07H; C07H21/00; C12; C12P; C12P19/00; C12P19/26; C12P19/28; C12P19/30; C12P19/34; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/848; Y10S435/849
Claims Analysis
Total Claims: 0
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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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |