US3097140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparing a mixed polio, pertussis, tetanus, and diphtheria vaccine with benzethonium chloride
Assignee: Merck and Co Inc
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Filing: 1958-10-31
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Granted: 1963-07-09
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Expires: 1978-10-31
Abstract
No abstract record available.
Inventors
- 👤 Lee F Schuchardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:44
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/12; A61K39/0016; A61K39/0017; A61K39/02; A61K39/05; A61K39/08; A61K39/099; A61K2039/51; A61K2039/52; A61K2039/521; A61K2039/525; A61K2039/5252; A61K2039/555; A61K2039/55505; A61K2039/70; C; C12; C12N; C12N2770/00; C12N2770/00011; C12N2770/32011; C12N2770/32611; C12N2770/32634; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A METHOD OF PREPARING A COMBINED POLIOMYELITISDIPHTHERIA-TETANUS-PERTUSSIS ANTIGEN, THE STEPS WHICH COMPRISE MIXING KILLED OUT ANTIGENIC POLIOMYELITIS VIRUS VACCINE, DIPHTHERIA TOXOID AND TETANUS TOXOID WITH POTASSIUM ALUM, INCORPORATING BENZETHONIUM CHLORIDE THEREIN, ADDING ALKALI METAL HYDROXIDE THEREBY PRECIPITATING ALUMINUM HYDROXIDE AND ABSORBING THE POLIOMYELITIS ANTIGEN, DIPHTHERIA ANTIGEN AND TETANUS ANTIGEN THEREON, SEPARATELY DETOXIFYING PERTUSSIS ORGANISMS WITH HEAT, AND INCORPORATING THE HEAT-DETOXIFIED PERTUSSIS ORGANISMS INTO THE MIXTURE CONTAINING SAID POLIOMYELITIS, DIPHTHERIA AND TETANUS ANTIGENS.
Claim 2
Dependent Claim
73 words
IN A METHOD OF PREPARING A COMBINED POLIOMYELITISDIPHTHERIA-TETANUS-PERTUSSIS ANTIGEN, THE STEPS WHICH COMPRISE MIXING KILLED OUT ANTIGENIC POLIOMYELITIS VIRUS VACCINE, DIPHTHERIA TOXOID AND TETANUS TOXOID WITH POTASSIUM ALUM, INCORPORATING BENZETHONIUM CHLORIDE THEREIN, ADDING ALKALI METAL HYDROXIDE THEREBY PRECIPITATING ALUMINUM HYDROXIDE AND ABSORBING THE POLIOMYELITIS ANTIGEN, DIPHTHERIA ANTIGEN AND TETANUS ANTIGEN THEREON, SEPARATELY DETOXIFYING PERTUSSIS ORGANISMS WITH HEAT, AND INCORPORATING THE HEAT-DETOXIFIED PERTUSSIS ORGANISMS INTO THE MIXTURE CONTAINING SAID POLIOMYELITIS, DIPHTHERIA AND TETANUS ANTIGENS.
References Cited (Backward Citations)
US2793160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |