Vision aid and anesthetic composition
Patent 5276032 Issued on January 4, 1994. Estimated Expiration Date: 
November 7, 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.
November 7, 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 References 1907392 2382546 2803582 3019163 Topical composition Patent #: 4748022 InventorsApplicationNo. 788932 filed on 11/07/1991US Classes:514/238.2, Chalcogen attached directly to the nitrogen by nonionic bonding514/317, Additional ring containing514/535, The nitrogen of the Z radical is directly bonded to a benzene ring which is directly bonded to the C(=O) group514/536, With an agent to enhance topical absorption or with a stabilizing agent514/626, Nitrogen in R514/781, Cellulose or derivative514/944, GEL514/967, VAGINAL514/969OINTMENT OR SALVE BASEExaminersPrimary: Waddell, Frederick E.Assistant: Criares, T. J. Foreign Patent References
International ClassesA61K 031/535A61K 031/445 A61K 031/24 A61K 047/00 AbstractA new visualizing and anesthetic composition and the process for the preparation thereof. The composition, generally as a gel, contains an effective amount of a topical anesthetic, an effective amount of a visualizing agent and a pharmaceutically acceptable gelling reservoir as a heat exchanger and/or a light transmitter. The composition is useful for topical application to a region of mammalian skin to supply visualization to a lesion therein and to anesthetize the region for a subsequent destructive therapy. | |
