Simplicity Manufacturing, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A01D HARVESTING; MOWING239
 
  
 
B60G VEHICLE SUSPENSION ARRANGEMENTS 249

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5803474 Torsion bar rear suspension for ride-on mowersJul 26, 96Sep 08, 98[B60G, A01D]
D395319 Vehicle grillMay 29, 97Jun 16, 98[1503]
5570570 Ride-on mower steering and suspension systemJun 07, 95Nov 05, 96[A01D]
5474315 Torsion bar rear suspension for ride-on mowersJul 16, 93Dec 12, 95[B60G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0274,098 Lawnmower override assembly apparatus and methodAbandonedJun 01, 04Dec 15, 05[A01D]
2005/0262,819 Lawnmower control assemblyAbandonedSep 29, 04Dec 01, 05[A01D]
6354978 Differential and method for variable traction controlExpiredOct 26, 99Mar 12, 02[F16H]
5642864 Chipper vacuum shredder system and apparatusExpiredNov 18, 94Jul 01, 97[B02C]
D343175 Yard waste processorExpiredJul 26, 91Jan 11, 94[]
5156345 Fan-type yard waste processing apparatusExpiredJul 26, 91Oct 20, 92[B02C]
5154043 Hitch system for lawn and garden tractorsExpiredSep 24, 90Oct 13, 92[A01D]
RE34057 Steering mechanism for a zero turning radius vehicleExpiredDec 12, 90Sep 08, 92[B62D]
5094326 Control linkage for hydrostatic transmissionExpiredSep 24, 90Mar 10, 92[B60K]
5085044 Two-blade mower deck with infinite height adjustmentExpiredSep 24, 90Feb 04, 92[A01D]
4911564 Protective bearing guardExpiredNov 10, 88Mar 27, 90[F16C]
4897942 High efficiency snowthrowerExpiredOct 14, 88Feb 06, 90[E01H]
D303804 Self-propelled riding tractorExpiredMay 07, 87Oct 03, 89[]
4834302 Apparatus for chipping and/or shredding branches and the likeExpiredNov 23, 87May 30, 89[B02C]
4826331 Protective bearings guardExpiredMar 16, 88May 02, 89[F16C]
4824034 Apparatus and method for chipping and/or shredding branches and the likeExpiredJul 21, 88Apr 25, 89[B02C]
4813215 Mower belt transmission with blade brakeExpiredMay 07, 87Mar 21, 89[A01D]
4807904 Riding mower chassis having improved rear portionExpiredMay 07, 87Feb 28, 89[B62D]
4790399 Steering mechanism for a zero turning radius vehicleExpiredMar 09, 88Dec 13, 88[B62D]
4787646 Riding mower chassis with floating steerable rear wheelsExpiredMay 07, 87Nov 29, 88[A01D]

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