https://patentbrief.org/company/james-industries-inc Plain-English explanations of patents assigned to James Industries Inc, newest first. en-us Sat, 13 Jun 2026 10:09:46 GMT https://patentbrief.org/patent/us/2415012/slinky-toy The original 1947 patent for the Slinky, a helical spring toy designed to walk down stairs through the transfer of energy. Tue, 28 Jan 1947 00:00:00 GMT https://patentbrief.org/patent/us/2415012/slinky-toy