US3010875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lyophilized syphilis complement fixation antigen and its preparation
Assignee: Becton Dickinson and Co
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Filing: 1958-03-18
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Granted: 1961-11-28
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Expires: 1978-03-18
Abstract
No abstract record available.
Inventors
- 👤 Leona R Cappel
- 👤 Norman O Cappel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:01
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/02; A61K39/0225; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/569; G01N33/571; Y; Y10; Y10S; Y10S435/00; Y10S435/961; Y10S436/00; Y10S436/811
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF PREPARING A DESICATED ANTIGENIC PREPARATION CAPABLE OF BEING RESTORED BY THE ADDITION OF A SOLVENT FOR USE IN COMPLEMENT-FIXATION TESTS FOR SYPHILIS WHICH COMPRISES PROVIDING AN ANTIGEN SOLUTION WHICH INCLUDES A SEROLOGICALLY ACTIVE TREPONEMA PALLIDUM COMPLEMENT-FIXATION ANTIGEN, MIXING WITH THE ANTIGEN SOLUTION AN ALBUMIN WHICH IS SEROLOGICALLY INACTIVE AND WILL NOT ADVERSELY AFFECT THE ANTIGEN OR THE COMPLEMENT OR INDICATOR TO BE USED IN THE TEST IN THE PROPORTION OF AT LEAST APPROXIMATELY 1 GRAM OF ALBUMIN TTO 100 ML. OF SOLUTION OF ANTIGEN AND ALBUMIN, THEN DESICCATING THE MIXTURE BY LYOPHILIZATION PROCEDURES AND FINALLY SEALING THE MIXTURE IN STERILE CONTAINERS.
Claim 2
Independent Claim
104 words
THE METHOD OF PREPARING A DESICATED ANTIGENIC PREPARATION CAPABLE OF BEING RESTORED BY THE ADDITION OF A SOLVENT FOR USE IN COMPLEMENT-FIXATION TESTS FOR SYPHILIS WHICH COMPRISES PROVIDING AN ANTIGEN SOLUTION WHICH INCLUDES A SEROLOGICALLY ACTIVE TREPONEMA PALLIDUM COMPLEMENT-FIXATION ANTIGEN, MIXING WITH THE ANTIGEN SOLUTION AN ALBUMIN WHICH IS SEROLOGICALLY INACTIVE AND WILL NOT ADVERSELY AFFECT THE ANTIGEN OR THE COMPLEMENT OR INDICATOR TO BE USED IN THE TEST IN THE PROPORTION OF AT LEAST APPROXIMATELY 1 GRAM OF ALBUMIN TTO 100 ML. OF SOLUTION OF ANTIGEN AND ALBUMIN, THEN DESICCATING THE MIXTURE BY LYOPHILIZATION PROCEDURES AND FINALLY SEALING THE MIXTURE IN STERILE CONTAINERS.
References Cited (Backward Citations)
US2892755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |