{"id":336,"date":"2016-01-16T09:00:15","date_gmt":"2016-01-16T14:00:15","guid":{"rendered":"https:\/\/patents.harnessip.com\/?p=336"},"modified":"2016-01-15T09:13:23","modified_gmt":"2016-01-15T14:13:23","slug":"january-16-patent-of-the-day","status":"publish","type":"post","link":"https:\/\/patents.harnessip.com\/?p=336","title":{"rendered":"January 16 Patent of the Day"},"content":{"rendered":"

On January 16, 1900,\u00a0Theophilus Van Kannel\u00a0received U.S. Patent No. 641,563 on the revolving door.<\/p>\n

\"20160116\"<\/a><\/p>\n

Actually there had been revolving doors before, including those shown in Van Kannel’s earlier U.S. Patent Nos. 387,571, 588,620, and 588,888, but his improvement was to allow the door to be collapsed “when direct ingress or egress is desired.”\u00a0 For his work Van Kannel was inducted into the National Inventors Hall of Fame in 2007.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

On January 16, 1900,\u00a0Theophilus Van Kannel\u00a0received U.S. Patent No. 641,563 on the revolving door. Actually there had been revolving doors before, including those shown in Van Kannel’s earlier U.S. Patent Nos. 387,571, 588,620, and 588,888, but his improvement was to … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-336","post","type-post","status-publish","format-standard","hentry","category-patent-of-the-day"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=336"}],"version-history":[{"count":1,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/336\/revisions"}],"predecessor-version":[{"id":338,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/336\/revisions\/338"}],"wp:attachment":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}