L.J. Smith, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E04F FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS 324
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B25H WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS 113
 
  
 
B27F DOVETAILED WORK; TENONS; SLOTTING MACHINES; NAILING OR STAPLING MACHINES 111
 
  
 
2501 BUILDING MATERIALS134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D735362 3-sided box newelOct 22, 13Jul 28, 15[2501]
8973314 Staircase newel system and method of installationOct 22, 13Mar 10, 15[E04F]
7281310 Baluster driver tool and method of using sameJun 16, 04Oct 16, 07[B23P]
5414942 Apparatus and method for measuring baluster lengths and replicAting baluster layout from a base surface to a handrailFeb 14, 94May 16, 95[B25H]
5347774 Methods of manufacturing curved staircases and staircases producedNov 16, 92Sep 20, 94[E04F]
5261201 Prefabricated curved handrail structure and connection methodsOct 09, 91Nov 16, 93[E04F]
5163491 Methods of manufacturing curved staircases and staircases producedNov 27, 91Nov 17, 92[B27F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0028,893 BALUSTER DRIVER TOOL AND METHOD OF USING THE SAMEAbandonedAug 22, 07Feb 07, 08[B25B]
6854196 Adjustable baluster spacer toolExpiredJun 03, 03Feb 15, 05[G01B]
5551495 Universal staircase handrail voluteExpiredMar 31, 94Sep 03, 96[B27D, B27B, B27M]
5440811 Adjustable/indexable scraping toolExpiredJan 11, 94Aug 15, 95[B26B]
5429446 Apparatus for hydraulically locking a hollow cylinder body onto a shaftExpiredAug 09, 93Jul 04, 95[F16L, B23B, F16D]
5174553 Adjustable lock mechanismExpiredApr 22, 91Dec 29, 92[B25B]
D329182 Gripping pad for a jig boring deviceExpiredFeb 16, 90Sep 08, 92[]
5125760 Method and structure for joining two elongate objects together end-to-endExpiredJun 20, 91Jun 30, 92[F16B]
5076552 Adjustable viseExpiredApr 27, 90Dec 31, 91[B25B]
5033904 Tubular dowel systemExpiredJan 31, 90Jul 23, 91[F16B]
4953602 Apparatus and associated methods for forming curved wooden hand rails for spiral staircases and the likeExpiredDec 08, 89Sep 04, 90[B27D, B27H]
4883383 Component fastening systemExpiredJul 15, 88Nov 28, 89[F16B, F16D]
4865496 Boring jig apparatusExpiredSep 19, 88Sep 12, 89[B23B]

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