Thrall Car Manufacturing Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61D BODY DETAILS OR KINDS OF RAILWAY VEHICLES 125

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6935245 Railway car for transporting semi-trucksSep 21, 01Aug 30, 05[B61D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6749380 Mechanism to facilitate raising and lowering hinged end section of deckExpiredMar 11, 02Jun 15, 04[B60P]
5762001 Door edge protectorExpiredFeb 28, 97Jun 09, 98[B61D]
5452664 Articulated, low level railroad spine car with overlapping kingpin connectorsExpiredJan 28, 94Sep 26, 95[B61D]
5088417 Light weight center beam railroad cars with pinned connectionsExpiredAug 16, 90Feb 18, 92[B61D]
4973067 Hopper car discharge gate sealExpiredSep 18, 89Nov 27, 90[F16L, B61D, B65D]
4930427 Railroad gondola or hopper car, particularly a coal carExpiredNov 30, 88Jun 05, 90[B61D]
4924779 Long-travel side bearing for an articulated railroad carExpiredFeb 21, 89May 15, 90[B61F]
4911082 Drop center gondola carExpiredApr 21, 89Mar 27, 90[B61D]
4901649 Span bolster assemblyExpiredDec 01, 88Feb 20, 90[B61F, B60P]
4898101 Vehicle hopper body with internal reinforcing membersExpiredSep 19, 88Feb 06, 90[B61D]
4889055 Railroad car for container transportExpiredApr 17, 89Dec 26, 89[B61D]
4884511 Aluminum hopper car with cast collars interconnecting intersecting center sill hood with ridge hood and sloped end wallsExpiredJan 27, 88Dec 05, 89[B61F, B61D]
4862810 Railroad car for container transportExpiredJul 15, 88Sep 05, 89[B61D]
4843974 Hopper car with automatic discharge door mechanismExpiredFeb 09, 88Jul 04, 89[B61D]
4840127 Top chord for open top hopper carsExpiredDec 04, 87Jun 20, 89[B61D]
4836726 Vehicle wheel chock for securing vehicles during transportExpiredJun 29, 88Jun 06, 89[B61D, B60P]
4829908 Hopper car automatic discharge door mechanism with operating lever adjustable supportExpiredFeb 12, 88May 16, 89[B61D]
4826259 Railroad car with brake system which applies less braking when empty than when loadedExpiredMay 20, 88May 02, 89[B60T]
4813359 Single axle railroad truck with frame improvementsExpiredSep 24, 87Mar 21, 89[B61F]
4807722 Railroad car for container transportExpiredJul 16, 87Feb 28, 89[B61F, B61D]

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