TRI-L Manufacturing, Inc.

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5240365 Bale spike frameExpiredJan 27, 92Aug 31, 93[A01D]
5044448 Farm implement attaching fitmentExpiredFeb 03, 89Sep 03, 91[A01B]
4674786 Hay bale spike assemblyExpiredJul 28, 86Jun 23, 87[A01D]
4364701 Combined hay bale transporting and unrolling mechanismExpiredDec 04, 80Dec 21, 82[A01D]
4288191 Hay bale handling mechanismExpiredOct 03, 79Sep 08, 81[B66F]

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