US3825525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Allergens reacted with carbodiimides
Assignee: Beecham Group PLC
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Filing: 1973-07-20
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Granted: 1974-07-23
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Expires: 1993-07-20
Abstract
Abstract DESENSITIZING OR IMMUNIZING AGENTS ARE PROVIDED FOR TREATING HYDPERSENSITIVE OR ALLERGIC CONDITIONS. MODIFIED ALLERGENIC MATERIAL IS PREPARED COMPRISING AN ALLERGENIC PROTEIN OR GLYCOPROTECTION CROSSLINKED INTERMOLECULARLY OR INTRAMOLECULARLY WITH AN INORGANIC CYANATE. THE MODIFIED MATERIAL HAS REDUCED ALLERGENICITY RELATIVE TO THE UNCROSSLINKED ALLERGEN AND HAS THE ABILITY TO PRODUCE ANTIBODIES HAVING CROSS-SPECIFICITY FOR THE UNCROSSLINKED ALLERGENIC PROTEIN OR GLYCOPROTEIN.
Inventors
- 👤 N Mullan
- 👤 B Overell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:49
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/35; A61K39/36; A61K2039/60; A61K2039/6012; Y; Y10; Y10S; Y10S530/00; Y10S530/806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |