Dry, water-foamable pharmaceutical compositions
Patent 4613497 Issued on September 23, 1986. Estimated Expiration Date: 
February 29, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 29, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesEffervescent medicaments Contraceptive suppository Effervescent powders Vaginal suppository Patent #: 4322399 InventorAssigneeApplicationNo. 06/584788 filed on 02/29/1984US Classes:424/44, Gas produced in situ by chemical reaction514/819, ANTACID, ORAL514/843Female (mammal)ExaminersPrimary: Schenkman, LeonardAttorney, Agent or FirmInternational ClassesA61K 9/00 (20060101)A61K 9/46 (20060101) AbstractA substantially anhydrous foamable composition capable of forming a substantially stable foam on contact with water is formed from a mixture of water soluble polysaccharide gum, an effervescent base and a biocompatible gelling salt. These compositions upon contact with water form extremely stable foams which are capable of acting as carriers for pharmaceutically active compositions.Other References
Field of SearchGas produced in situ by chemical reaction | |
