3894576 CANADA LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E01D BRIDGES 312
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 265

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6804850 Loading dock with lip protecting bumpersMar 05, 01Oct 19, 04[E01D]
5743697 Automatic wheel chockJul 11, 96Apr 28, 98[B65G]
5454682 Vehicle restraintMay 18, 94Oct 03, 95[B65G]
5396676 Vertically storing dock levelerNov 19, 92Mar 14, 95[E01D]
5117526 Vertically storing dock levelerJul 02, 91Jun 02, 92[E01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0144,365 Locking dock with adjustable bumpersAbandonedMay 16, 00Oct 10, 02[E01D]
6139242 Vehicle restraint with security deviceExpiredApr 16, 97Oct 31, 00[B65G]
6123496 Automatic wheel chockExpiredAug 26, 97Sep 26, 00[B65G]
6035475 Maintenance prop for a dock levelerExpiredMar 05, 98Mar 14, 00[E01D]
5926890 Dock leveler lip constructionExpiredOct 22, 96Jul 27, 99[E01D]
5826291 Electrically actuated dock levelerExpiredOct 22, 96Oct 27, 98[E01D]
5813072 Automatic safety legs for dock levelerExpiredNov 27, 96Sep 29, 98[E01D]
5774920 Electrically actuated dock levelerExpiredMay 20, 96Jul 07, 98[E01D]
5586355 Safety device for a vertically stored dock levelerExpiredMar 21, 95Dec 24, 96[E01D]
5586356 Automatic return to dock mechanism for mechanical dock levelerExpiredNov 27, 95Dec 24, 96[E01D]
5553343 Dock leveler with folding barrier lipExpiredMar 06, 95Sep 10, 96[E01D]
5505575 Pit mounted retractable vehicle restraintExpiredSep 07, 94Apr 09, 96[B65G]
5303443 Dock leveler hold-down systemExpiredApr 02, 92Apr 19, 94[B65G]
5259708 Key cutting machine having manual and automatic modes of operationExpiredDec 07, 92Nov 09, 93[B23C]
5120181 Vehicle restraintExpiredJan 18, 90Jun 09, 92[B65G]
5097557 Trapezoidal beam dock levelerExpiredOct 05, 90Mar 24, 92[E01D]
5096359 Vehicle restraint actuatorExpiredJun 20, 90Mar 17, 92[B65G]
5048246 Wedge seal for loading dock shelterExpiredAug 21, 90Sep 17, 91[E04H]
5026242 Automatic vehicle restraintExpiredFeb 21, 90Jun 25, 91[B65G]
5001799 Seal carried by a vertically storing dock levelerExpiredApr 03, 89Mar 26, 91[E01D]

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