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Can an abandoned patent affect an issued one ? There's a twist

Patent A was filed formally, March-13-2010, published Nov-2011 Patent B was filed provisional, March-14-2010, then formal-filed Mar-2011 The patents covered some similar areas, but Patent B spec was ...
David's user avatar
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How can the challenge date of an application be extended?

The challenge on Microsoft's patent US 20130063492 states: Availability for Challenge: Open Until at least Sept 14, 2013 How is the "available for challenge" date obtained? What steps must we ...
Pacerier's user avatar
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expiry date patent EP 0999335 for Europe - Holland?

In reference to the patent: EP0999335A1
user19477's user avatar
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The expiration date of the patent US 20100203636

In reference to the patent: US20100203636
Benjamin Cui's user avatar