Laser Sintering 3D Printing May Now Take Off with a Very Important Patent Expiring Today - 3DPrint.com:
(5 years ago) "If it wasn’t for the expiration of this patent, MakerBot probably wouldn’t be around, and they certainly would not be selling 3D Printers for $1375 (Although the owner of the patent, Stratasys ended up acquiring MakerBot). Prior to the patents expiration, you would typically find a printer that used this FDM technology to cost in the $25,000 range."
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