US3259546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of viruses
Assignee: Canadian Patents and Development Ltd
•
Filing: 1962-06-01
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Granted: 1966-07-05
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 John R Polley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:16
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/12; A61K39/145; A61K2039/51; A61K2039/525; A61K2039/5252; C; C12; C12N; C12N2760/00; C12N2760/00011; C12N2760/16011; C12N2760/16111; C12N2760/16134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR DESTROYING INFECTIVITY BY IRRADIATING AQUEOUS SUSPENSIONS OF INFECTIVE VIRUS SELECTED FROM THE GROUP CONSISTING OF INFLUENZA AND MUMPS, COMPRISING ADDING TO THE SUSPENSION A PROTECTIVE AGENT FOR THE VIRUS ANTIGENIC COMPONENT SELECTED FROM THE GROUP CONSISTING OF CYSTINE, CYSTEINE, METHIONINE, HISTIDINE, TRYPTOPHAN, TYROSINE, PHENYLALANINE, ALLANTON, P-AMINOHIPPURIC ACID, SULPHANILAMIDE, ASCORBIC ACID AND NON-TOXIC SALTS OF THE ACIDS, IN AN EFFECTIVE AMOUNT FROM FROM ABOUT 0.05 TO ABOUT 0.08% WT./VOL., IRRADIATING AND GRAMMA RADIATION UNTIL THE INFECTIVITY IS DESTROYED, THE RADIATION DISE BEING WITHIN THE RANGE 1X10**6 TO 6X10**6 RADS, AND RECOVERING VIRUS SUSPENSIONS HAVING A HEMAGGLUTININ (UNITS/ML.) OF AT LEAST ABOUT 300, AND SUITABLE FOR VACCINE PREPARATION.
Claim 2
Dependent Claim
109 words
A PROCESS FOR DESTROYING INFECTIVITY BY IRRADIATING AQUEOUS SUSPENSIONS OF INFECTIVE VIRUS SELECTED FROM THE GROUP CONSISTING OF INFLUENZA AND MUMPS, COMPRISING ADDING TO THE SUSPENSION A PROTECTIVE AGENT FOR THE VIRUS ANTIGENIC COMPONENT SELECTED FROM THE GROUP CONSISTING OF CYSTINE, CYSTEINE, METHIONINE, HISTIDINE, TRYPTOPHAN, TYROSINE, PHENYLALANINE, ALLANTON, P-AMINOHIPPURIC ACID, SULPHANILAMIDE, ASCORBIC ACID AND NON-TOXIC SALTS OF THE ACIDS, IN AN EFFECTIVE AMOUNT FROM FROM ABOUT 0.05 TO ABOUT 0.08% WT./VOL., IRRADIATING AND GRAMMA RADIATION UNTIL THE INFECTIVITY IS DESTROYED, THE RADIATION DISE BEING WITHIN THE RANGE 1X10**6 TO 6X10**6 RADS, AND RECOVERING VIRUS SUSPENSIONS HAVING A HEMAGGLUTININ (UNITS/ML.) OF AT LEAST ABOUT 300, AND SUITABLE FOR VACCINE PREPARATION.
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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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |