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edited tags

edited Dec 20, 2012 at 21:23

Gilles 'SO- stop being evil'

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Is this patent US6323569 B1 still valid? Valid till? End date?

I would like to know is patent "US6323569 B1" still valid? its end date?

Thank you!

data-processing-database usa patent-lifetime us6323569b1

asked Dec 20, 2012 at 7:25

user1988