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Details for Patent: 5,681,809

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Summary for Patent: 5,681,809

Title: Growth hormone antagonists
Abstract:The present invention relates to antagonists of vertebrate growth hormones obtained by mutation of the third alpha helix of such proteins (especially bovine or human GHs). These mutants have growth inhibitory or other GH-antagonizing effects. These novel hormones may be administered exogenously to animals, or transgenic animals may be made that express the antagonist. Animals have been made which exhibited a reduced growth phenotype.
Inventor(s): Kopchick; John J. (Athens, OH), Chen; Wen Y. (Athens, OH)
Assignee: Ohio University (Athens, OH)
Application Number:08/313,505
Patent Claim Types:
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Compound; Use;

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International Patent Family for Patent: 5,681,809

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada2067136► Subscribe
Canada2102129► Subscribe
Germany69033603► Subscribe
Denmark0556171► Subscribe
European Patent Office0556171► 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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