US2965543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alcohol detoxification of pertussis vaccines
Assignee: Merck and Co Inc
•
Filing: 1953-07-03
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Granted: 1960-12-20
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Expires: 1973-07-03
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth H Thiele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:45
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/02; A61K39/099; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/851
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PROCESS FOR THE DETOXIFICATION OF THE PERTUSSIS THERMOLABILE TOXIN IN A SOLUTION CONTAINING BOTH SAID TOXIN AND THE PROTECTIVE ANTIGEN OF H. PERTUSSIS, WHICH COMPRISES ITS CONTACT FOR FROM 10 MINUTES TO 48 HOURS WITH A MONOHYDRIC ALIPHATIC ALCOHOL HAVING FROM 2 TO 4 CARBON ATOMS IN ITS MOLECULE UNDER REFRIGERATED CONDITIONS ABOVE ITS FREEZING POINT, THE ALCOHOL CONCENTRATION BEING FROM 20 TO 80% BY VOLUME.
Claim 2
Dependent Claim
67 words
A PROCESS FOR THE DETOXIFICATION OF THE PERTUSSIS THERMOLABILE TOXIN IN A SOLUTION CONTAINING BOTH SAID TOXIN AND THE PROTECTIVE ANTIGEN OF H. PERTUSSIS, WHICH COMPRISES ITS CONTACT FOR FROM 10 MINUTES TO 48 HOURS WITH A MONOHYDRIC ALIPHATIC ALCOHOL HAVING FROM 2 TO 4 CARBON ATOMS IN ITS MOLECULE UNDER REFRIGERATED CONDITIONS ABOVE ITS FREEZING POINT, THE ALCOHOL CONCENTRATION BEING FROM 20 TO 80% BY VOLUME.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |