Topical device for administering tretinoin
Patent 4073291 Issued on February 14, 1978. Estimated Expiration Date: 
February 14, 1995. 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 14, 1995. 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 References3896789 InventorsApplicationNo. 709370 filed on 07/28/1976US Classes:604/307, Adhesively attachable to body424/448Pressure sensitive adhesive meansExaminersPrimary: Padgett, Benjamin R.Assistant: Parr, E. Suzanne International ClassA61F 013/02AbstractTretinoin is incorporated in the adhesive mass of a dermatologically acceptable pressure-sensitive adhesive tape for the localized topical treatment of such skin conditions as acne and warts. | |
