According to the American science and technology blog Gizmodo, we all know that the archives of patent offices are very fascinating. Did those failed entrepreneurs really design something useful? New York lawyer Martin Galese thinks this is the case, so he provided some out-of-date patented 3D printing designs on the Internet.
Gries is a software patent attorney and has time to look at outdated patents. He posted many patented design drawings and CAD models on his blog. They had previously belonged to patents, but they have now entered the public domain. He found that most of the 8 million patents in the U.S. Patent and Trademark Office have expired, that is, more than 6 million patents have entered the public domain, and a large number of interesting and useful designs can be discovered.
In addition to blogging, Gries also has a section in the Thingiverse community where you can download 3D designs and print them yourself. "They are all works of art," he said. "You are using the 21st century technology to appreciate 19th century designs."
Cap clips. The design of 1907 was designed to allow ladies to wear their hats securely on their heads.
Brush the pan. This “novelly designed brush pan†in 1875 is the most popular item on Griess’s blog. The inventor of this article wrote: "I, Urias Kramer from New Philadelphia, Ohio, has made new and practical improvements to the cooker."
Chopsticks folder. The 1960 invention helped people learn to use chopsticks.
Bookmarks and clips. This need not be said.
(Editor)