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Patent US3052606A successfully refreshed from Google Patents.
US3052606A
Expired / Lapsed
US
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Viral mutation with nitrites
Assignee: Siemens Healthcare Diagnostics GmbH Germany
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Filing: 1959-08-28
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Granted: 1962-09-04
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Expires: 1979-08-28
Abstract
No abstract record available.
Inventors
- 👤 Gierer Alfred
- 👤 Mundry Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:39
CPC Classifications
C; C12; C12N; C12N15/00; C12N15/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR PREPARING VIABLE VIRUS MUTANTS WHICH COMPRISES CONTACTING A MEMBER OF THE GROUP CONSISTING OF VIRUSES AND VIRUS NUCLEIC ACIDS WITH AQUEOUS NITROUS ACID IN A CONCENTRATION BETWEEN ABOUT 0.12 AND 1 MOLES PER LITER FOR A TIME BETWEEN ABOUT 1 MINUTE AND ABOUT 96 MINUTES, AT A PH BETWEEN ABOUT 4.5 AND 7 AND AT ABOUT ROOM TEMPERATURE, AND THEN ISOLATING THE INDIVIDUAL MUTANTS OBTAINED.
Claim 2
Dependent Claim
68 words
A PROCESS FOR PREPARING VIABLE VIRUS MUTANTS WHICH COMPRISES CONTACTING A MEMBER OF THE GROUP CONSISTING OF VIRUSES AND VIRUS NUCLEIC ACIDS WITH AQUEOUS NITROUS ACID IN A CONCENTRATION BETWEEN ABOUT 0.12 AND 1 MOLES PER LITER FOR A TIME BETWEEN ABOUT 1 MINUTE AND ABOUT 96 MINUTES, AT A PH BETWEEN ABOUT 4.5 AND 7 AND AT ABOUT ROOM TEMPERATURE, AND THEN ISOLATING THE INDIVIDUAL MUTANTS OBTAINED.
References Cited (Backward Citations)
GB112498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |