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Details for Patent: 6,773,696

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Summary for Patent: 6,773,696

Title: Contrast agent comprising low density microspheres
Abstract:Low density microspheres, methods for preparing same, and use of same as contrast agents are described. The microspheres have a void having a volume that comprises at least about 75% of the total volume of the microspheres, and which contains a gas or the vapor of a volatile liquid selected from the group consisting of aliphatic hydrocarbons, chlorofluorocarbons, tetraalkyl silanes and perfluorocarbons.
Inventor(s): Unger; Evan C. (Tucson, AZ)
Assignee: Bristol-Myers Squibb Medical Imaging, Inc. (Princeton, NJ)
Application Number:10/280,844
Patent Claim Types:
see list of patent claims
Compound; Delivery;
Patent Metrics:
Source: PatentQuant.com
Field: Medical technology
Back Citations: 313th percentile
Forward Citations: 2nd percentile

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Premature patent expiration for: 6,773,696

Expiration due to failure to pay maintenance fee

Patent Number Expiration Date
6,773,696 August 10, 2012

International Patent Family for Patent: 6,773,696

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada2191079► subscribe
China1149259► subscribe
China1160357► subscribe
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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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