TEKNA

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D312168 Fin sockExpiredSep 30, 87Nov 20, 90[]
D304154 Foldable knifeExpiredMar 09, 87Oct 24, 89[]
4794803 Decompression and air consumption computerExpiredJun 09, 87Jan 03, 89[H03F, G01D, G01F]
4753117 Decompression and air consumption computerExpiredJan 30, 86Jun 28, 88[G01L, G01D, G01F]
D288898 Retractable knifeExpiredJul 24, 84Mar 24, 87[]
4523379 Knife with retractable sheathExpiredMay 02, 84Jun 18, 85[B26B]

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