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|Title:||Liquid prolonged release pharmaceutical formulations containing ionic constituents|
|Abstract:||A formulation of a drug wherein the drug is present as a coated, drug-resin complex suspended in a liquid carrier which carrier also contains a second ionic component bearing the same charge as the coated complexed drug, the second ionic component being present as an uncoated, insoluble drug-resin complex.|
|Inventor(s):||Sheumaker; Jerry L. (Fairport, NY)|
|Assignee:||Pennwalt Corporation (Philadelphia, PA)|
Patent Claim Types:|
see list of patent claims
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
|Ireland||841201||<disabled in preview>|
|Finland||843609||<disabled in preview>|
|European Patent Office||0139881||<disabled in preview>|
| This preview shows a limited data set|
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.
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