HARPER TRUCKS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B62B HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES 226

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6758482 Multipurpose storage and transport cartMar 27, 02Jul 06, 04[B62B]
D395105 Hand truckFeb 28, 97Jun 09, 98[1202]
5749588 Composite hand truckJul 29, 96May 12, 98[B62B]
D384467 Hand truck side frameJun 28, 96Sep 30, 97[1202]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6481727 Hand truck toe plate and method of manufactureExpiredNov 23, 99Nov 19, 02[B62B]
6419434 Adjustable length cargo braceExpiredMay 01, 00Jul 16, 02[B60P]
6308967 Dual hand truckExpiredJun 02, 00Oct 30, 01[B62B]
5549317 Foldable hand truck apparatusExpiredOct 06, 94Aug 27, 96[B62B]
D354601 Foldable hand truck assemblyExpiredAug 02, 93Jan 17, 95[]
5253881 Hand truck stair crawler assemblyExpiredAug 24, 92Oct 19, 93[B62B]
4986706 Header wallExpiredApr 14, 86Jan 22, 91[B61D]
4902187 Drum dolly attachment apparatusExpiredAug 29, 88Feb 20, 90[B62B]
4860606 Ratchet apparatus with hand truck assemblyExpiredMay 23, 88Aug 29, 89[F16D, B60P, B62B]
D278373 Hand truckExpiredSep 30, 82Apr 09, 85[]
4494626 Combination stepladder and hand truck apparatusExpiredNov 12, 82Jan 22, 85[E06C, B62B]
4433816 Wire guide and retainer assemblyExpiredApr 12, 82Feb 28, 84[B65H]

Top Inventors for This Owner

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