PIONEER INDUSTRIAL CORPORATION

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Patent Activity in the Last 10 Years

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Top Patents (by citation)

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D446245 Pen capSep 11, 00Aug 07, 01[1906]
D436997 Pen capApr 04, 00Jan 30, 01[1906]
D422308 Building block type writing implementJan 25, 99Apr 04, 00[1906]
D419187 Building block-type writing implementOct 02, 98Jan 18, 00[1906]
D394876 Combined refillable eraser tips and holder thereforJun 26, 97Jun 02, 98[1906]
D384103 Toy bear writing implementJul 17, 96Sep 23, 97[1906]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6161976 Automatic writing apparatus for segmental writing elements with capsExpiredJun 02, 99Dec 19, 00[B43K]
6149330 Building blocks type writing instrumentExpiredMar 30, 99Nov 21, 00[B43K]
5984550 Writing deviceExpiredFeb 26, 96Nov 16, 99[B43K]
D359510 Cap for writing instrumentExpiredJan 14, 94Jun 20, 95[]
D355442 Combined refillable eraser tips and container thereforExpiredJan 14, 94Feb 14, 95[]
5345652 Refill eraserExpiredJan 14, 94Sep 13, 94[B43L]
D341623 Combined writing instrument and replaceable writing tipsExpiredJun 02, 92Nov 23, 93[]
5221152 Writing instrument with capExpiredJun 02, 92Jun 22, 93[B43K]
5044804 Writing instrumentExpiredDec 14, 89Sep 03, 91[B43K, A45D]
D317324 Cap for writing toolsExpiredOct 25, 88Jun 04, 91[]
D305777 Writing instrument holderExpiredMar 27, 87Jan 30, 90[]
D305245 Cap for writing toolsExpiredMar 27, 87Dec 26, 89[]

Top Inventors for This Owner

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