4 ms·
Care to quote any section of that page that mentions patents? "Patent", "Patented", "Pat.", "USPTO", "Proprietary", or "Protected" do not appear in the body of
by fr0sty 14y ago
Care to quote any section of that page that mentions patents?
"Patent", "Patented", "Pat.", "USPTO", "Proprietary", or "Protected" do not appear in the body of the article.
Also, there is this: "The first thermoplastic extrusion was in 1935 by Paul Troester in Germany." Looks like a decent prior-art claim.
- ohwp 14y agoThis one for example: http://www.google.com/patents/US4118163 http://www.google.com/patents/US4118163 I know it won't be a problem when people use this at home, but Lulzbot is going to sell assembled versions. I hope they don't get in trouble for that.