Pearl Abrasive Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 660
 
  
 
A47L DOMESTIC WASHING OR CLEANING 159
 
  
 
B23D PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR 128

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7686677 Floor treatment machine with wheel assemblySep 29, 05Mar 30, 10[B24B, A47L]
6623342 Support accessory for power hand toolMar 02, 02Sep 23, 03[B24B]
6231432 Floor treatment machine with torque limiterNov 12, 99May 15, 01[B24B]
D401822 Abrasive cutting wheelJun 05, 97Dec 01, 98[0803]
5788561 Apparatus for grinding floor surfaces and/or cutting grooves in floorsJun 20, 97Aug 04, 98[B24B]
5683143 Abrasive surface treatment apparatus having removable blocksJan 11, 96Nov 04, 97[B24B, B23D]
5514027 Sanding head for a sanding machineApr 22, 94May 07, 96[B24B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2003/0070,306 Apparatus for supporting a cutting saw about a substrateAbandonedOct 15, 01Apr 17, 03[B23D]
2002/0111,126 Hole abrading toolAbandonedFeb 14, 01Aug 15, 02[B24B]
D369814 Abrasive pin for a sanding machine headExpiredSep 13, 94May 14, 96[]

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