Patent US3583893A successfully refreshed from Google Patents.
US3583893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of interferon inducers
Assignee: Merck and Co Inc
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Filing: 1968-07-15
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Granted: 1971-06-08
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Expires: 1988-07-15
Abstract
Abstract DOUBLE-STRANDED RIBONUCLEIC ACID IS PRODUCED BY GROWING E. COLI IN A CORN STEEP LIQUOR MEDIUM AND THEN INFECTING THE E. COLI WITH A MUTANT OF MS2 COLIPHAGE.
Inventors
- 👤 Barbara D Lago
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:51
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/26; C12P19/28; C12P19/30; C12P19/34; A; A61; A61K; A61K31/00; A61K31/70; C07; C07H; C07H21/00; Y; Y02; Y02A; Y02A50/00; Y02A50/30; Y10; Y10S; Y10S435/00; Y10S435/802; Y10S435/811; 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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |