Patent US3597318A successfully refreshed from Google Patents.
US3597318A
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Production of double stranded hibonucleic acid
Assignee: Glaxo Laboratories Ltd
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Filing: 1969-11-17
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Granted: 1971-08-03
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Expires: 1989-11-17
Abstract
Abstract AN ANTIVIRAL SUBSTANCE ACTIVE AGAINST BOTH DNA AND RNA VIRUSES IS PRODUCED BY CULTURING A STRAIN OF PENICILLIUM CHRYSOGENUM ON A NUTRIENT MEDIUM THEREFOR, RUPTURING THE CULTURED CELLS, FRACTIONATING THE CELL CONTENTS AND RECOVERING AT LEAST ONE DOUBLE-STRANDED RIBONUCLEIC ACID HAVING A MOLECULAR WEIGHT OF ABOUT 200,000 OR GREATER.
Inventors
- 👤 Elisabeth Sinclair
- 👤 Christine Joy Bessell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:17
CPC Classifications
C; C07; C07H; C07H21/00; C12; C12P; C12P19/00; C12P19/26; C12P19/28; C12P19/30; C12P19/34; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/8215; Y10S435/911; Y10S435/933; Y10S435/935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |