External preparation comprising calcium silicate
Patent 5204119 Issued on April 20, 1993. Estimated Expiration Date: 
August 20, 2011. 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.
August 20, 2011. 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 ReferencesNovel amorphous silica, and products thereof Antibiotic AM-3603 Cellulose acetate molding containing odoriferous substance Topically applicable formulations of gyrase inhibitors in combination with corticosteroids Process of producing an active agent delivery device Patent #: 5071645 InventorsApplicationNo. 748208 filed on 08/20/1991US Classes:424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/449, Transdermal or percutaneous424/682, Aluminum, calcium or magnesium element, or compound containing424/724, Silicon dioxide containing514/420, Indomethacine per se or ester thereof514/770, Siliceous or calcareous material (e.g., clay, earth, etc.)514/947Topical applicationExaminersPrimary: Page, Thurman K.Assistant: Spear, James M. Attorney, Agent or FirmForeign Patent References
International ClassA61K 009/14Foreign Application Priority Data1990-08-29 JPAbstractAn external preparation is characterized by comprising calcium silicate. The calcium silicate controls the release rate and percutaneous absorbability of a drug.Other References
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