Talk:HearFones

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	This article was reviewed by member(s) of WikiProject Articles for creation. The project works to allow users to contribute quality articles and media files to the encyclopedia and track their progress as they are developed. To participate, please visit the project page for more information.Articles for creationWikipedia:WikiProject Articles for creationTemplate:WikiProject Articles for creationAfC
	This article was accepted on 24 February 2012 by reviewer Shearonink (talk · contribs).

Patent expired?

The patent linked in the article was filed March 5, 1998, more than 20 years ago. Has the patent expired? Should the article be updated to reflect that it was a previously patented technology?

Georglink (talk) 17:39, 2 April 2020 (UTC)[reply]