Allergenic extract and process for preparing same
Abstract
Abstract A PROCESS FOR PREPARING ANTIGENIC OR ALLERGENIC EXTRACTS AND THE PRODUCT OBTAINED THEREBY COMPRISING TREATIG WITH AN AQUEOUS EXTRACTING FLUID, SUBSTANCES KNOWN TO CONTAIN PHYSIOLOGICALLY ACTIVE PRINCIPLES WHICH ELICIT ALLERGENIC AND/OR ANTIGENIC RESPONSES, SEPARATING THE AQUEOUS EXTRACTING FLUID CONTAINING THE WATER-SOLUBLE ACTIVE PRINCIPLES FROM THE WATER-INSOLUBLE PORTION OF THE SUBSTANCE, TREATING THE WATER-INSOLUBLE PORTION OF THE SUBSTANCE WITH AN AQUEOUS-ORGANIC SOLVENT OR ONO-AQUEOUS SOLVENT EXTRACTING FLUID, SEPARATING IN ORGANIC SOLVENT EXTRACTING FLUID FROM THE PORTION OF THE SUBSTANCE INSOLUBLE THEREIN, INSOLUBILIZING THE ACTIVE PRINCIPLES CONTAINED IN SAID EXTRACTS BY THE ADDITION THERETO OF AN ALUMINUM COMPOUND, SEPARATING THE INSOLUBILIZED ACTIVE PRINCIPLES FROM THE EXTRACTING FLUIDS AND PREFERABLY RESUSPENDING SAME IN A PHYSIOLOGICALLY ACCEPTABLE AQUEOUS FLUID.
Inventors
- 👤 Margaret Strauss Kramer
Bibliographic Details
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |