Microspheres useful for therapeutic vascular occlusions and injectable solutions containing the same
Patent 5648100 Issued on July 15, 1997. Estimated Expiration Date: 
June 6, 2015. 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.
June 6, 2015. 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 3797485 Anti-cancer device Polyacrolein microspheres Sustained release pharmaceutical plaster Sustained release pharmaceutical preparation Patent #: 4990340 InventorsAssigneeApplicationNo. 471303 filed on 06/06/1995US Classes:424/501, Contains solid synthetic resin424/489, Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)424/491, Containing proteins and derivatives424/492, Gelatin424/496, Containing natural gums/resins424/497, Containing solid synthetic polymers424/500Contains natural gums and resinsExaminersPrimary: Azpuru, CarlosAttorney, Agent or FirmInternational ClassesA61K 009/14A61K 009/16 A61K 009/50 Foreign Application Priority Data1991-05-29 FRAbstractThe present invention concerns the use of microspheres for therapeutic embolization consisting of a hydrophilic acrylic copolymer coated with a cell adhesion promoter.Other References
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