AMF Incorporated

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4887985 Swim fin provided with a self-shaping, fluid flow conveying and controlling canal-like memberExpiredFeb 03, 88Dec 19, 89[A63B]
4738645 Swim fin provided with a self-shaping, fluid flow conveying and controlling canal-like memberExpiredJun 04, 86Apr 19, 88[A63B]
4731184 Filter elementExpiredApr 14, 87Mar 15, 88[B01D]
4720909 Method of manufacturing miniature power switching relaysExpiredFeb 18, 86Jan 26, 88[H01H]
4700720 Knives in cutting machinesExpiredJul 15, 85Oct 20, 87[A24B]
4698953 Bag filling apparatusExpiredMar 04, 86Oct 13, 87[B65B]
4696146 Packaging machinesExpiredMar 06, 86Sep 29, 87[B65B]
4672982 Process for the production of a smoking material from cigarette maker winnowings and apparatusExpiredAug 29, 85Jun 16, 87[A24B]
4618415 Tobacco separatorExpiredAug 31, 84Oct 21, 86[B02C, B07B]
4559145 Process for preparing a zero standard serumExpiredJun 16, 82Dec 17, 85[B01D]
4554933 Tobacco opening and conditioning apparatusExpiredSep 13, 82Nov 26, 85[A24B]
4535057 Immunoassay employing monoclonal herpes simplex antibody and biotin-avidin detection systemExpiredJul 26, 82Aug 13, 85[G01N]
4510808 Apparatus for the continuous measurement of bulk density material such as cut tobaccoExpiredMay 26, 83Apr 16, 85[G01N]
4483922 Inactivation of enzymesExpiredMay 14, 82Nov 20, 84[C12Q, C12N]
4481298 Pre-precipitated double antibody immunoassay methodExpiredFeb 19, 82Nov 06, 84[G01N]
4460170 Vaulting boardsExpiredMay 28, 82Jul 17, 84[A63B]
D274538 Wall mounted exerciser housingExpiredFeb 05, 82Jul 03, 84[]
D272553 Squash racketExpiredSep 23, 81Feb 07, 84[D210]
4429871 Hydraulic exerciserExpiredNov 12, 81Feb 07, 84[A63B]
D269772 Combined front and rear fenders, chain guard, engine cover and fuel tank for mopedExpiredSep 08, 80Jul 19, 83[D121]

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