National Can Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4774839 Method and apparatus for necking containersExpiredFeb 06, 87Oct 04, 88[B21D]
4696580 Method for detecting sterilizationExpiredMar 03, 86Sep 29, 87[G01K, G01N]
4693108 Method and apparatus for necking and flanging containersExpiredApr 22, 85Sep 15, 87[B21D]
4693376 Apparatus for inspecting containersExpiredMay 26, 81Sep 15, 87[B07C]
D279265 End closure for a containerExpiredApr 14, 82Jun 18, 85[]
D272888 BottleExpiredJul 31, 81Mar 06, 84[]
4405556 Process and apparatus for forming oriented, blown articlesExpiredJan 27, 82Sep 20, 83[B29C]
4382905 Injection mold dwell cycleExpiredJul 31, 81May 10, 83[B29C]
4352777 Method for forming hollow plastic objectsExpiredFeb 11, 80Oct 05, 82[B29C]
4327052 Process for making containersExpiredSep 23, 80Apr 27, 82[B29C]
4323341 Apparatus for forming hollow plastic objectsExpiredMar 11, 80Apr 06, 82[B29C]
4308086 Apparatus for the preparation of hollow plastic articles with a base cupExpiredMay 27, 80Dec 29, 81[B29D]
4305772 Method for forming an interlocked assemblyExpiredJan 21, 80Dec 15, 81[B23P, B29C]
4289817 Decorated multilayered hollow plastic containerExpiredMay 16, 80Sep 15, 81[B65D, B32B]
4242300 Method for processing parisonsExpiredDec 12, 78Dec 30, 80[B29C]
4234302 Apparatus for the preparation of hollow plastic articlesExpiredJan 24, 79Nov 18, 80[B29C]
4230298 Apparatus for the preparation of hollow plastic articlesExpiredJan 24, 79Oct 28, 80[B29C]
4225304 Apparatus for the preparation of hollow plastic articlesExpiredJan 24, 79Sep 30, 80[B29C]
4207134 Apparatus for the preparation of hollow plastic articlesExpiredJun 01, 78Jun 10, 80[B29C, B29D, B32B]

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