Microsoft, HTC, Nokia and Sony Erickson have filed formal applications for a declaration of invalidity against Apple’s trademarks for “App Store” and “Appstore” with the Community Trade Mark office in Europe.
The four companies join Amazon, who filed a similar complaint in Europe against Apple in mid-April, seeking to have Apple’s two European trademarks invalidated for being too generic.
Microsoft launched a similar legal battle against Apple in 2008 when Apple attempted to trademark the term “App Store” with the U.S. Patent and Trademark Office.
These companies may be worried because Apple has already gotten litigious on the matter and sued Amazon in March 2011 over its use of “Appstore” in the title of its mobile application store for Android devices.
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