Patent 5518187 Issued on May 21, 1996. Estimated Expiration Date: January 12, 2014. 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.
241/5, By utilizing kinetic energy of projected or suspended material241/21, Liquids added to make pulp or suspension241/22, Application of solids to material241/170, Loose grinding body comminutor (e.g., ball or rod mills)241/184Grinding bodies
A method of preparing particles of a drug substance or diagnostic imaging agent which comprises grinding the drug substance or imaging agent in the presence of grinding media comprising a polymeric resin. The method provides particles exhibiting reduced contamination.
January 12, 2014. 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.
