Columbia Steel Casting Co., Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16G BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR524
 
  
 
E02F DREDGING; SOIL-SHIFTING 342
 
  
 
B21L MAKING CHAINS 16
 
  
 
B25G HANDLES FOR HAND IMPLEMENTS 113
 
  
 
1509 MACHINE TOOLS, ABRADING AND FOUNDING MACHINERY128
 
  
 
1205 ELEVATORS AND HOISTS FOR LOADING OR CONVEYING118

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9816585 Repair link for twist link and other chain typesMar 23, 17Nov 14, 17[F16G]
9482315 Stud end linkOct 14, 15Nov 01, 16[F16G, E02F]
9163378 Pin retainer for dragline pinsNov 30, 12Oct 20, 15[F16B, E02F]
9103409 Readily releasable wedge assembly for holding a wire rope in a socketMar 12, 13Aug 11, 15[F16G]
D673590 Crusher mantleOct 28, 10Jan 01, 13[1509]
8112912 Dump block with improved assembly featuresSep 22, 09Feb 14, 12[E02F]
D610771 Portion of a dump blockMay 11, 09Feb 23, 10[1205]
7155895 Coupling linkDec 05, 05Jan 02, 07[F16G]
6871486 Chain link with angularly disposed end portionsDec 23, 03Mar 29, 05[B21L, F16G]
5988929 Easy-out cable socket wedge and method for use thereofOct 09, 97Nov 23, 99[B25G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0102,679 ADJUSTABLE SOCKET FOR FERRULE ROPEAbandonedFeb 14, 11May 03, 12[F16G]
2011/0110,708 INTERCHANGEABLE HOIST AND DRAG LINKAbandonedNov 10, 09May 12, 11[B23P, F16C, E02F]
2003/0213,226 Chain link with angularly disposed end portionsAbandonedMay 14, 02Nov 20, 03[F16G]
6170248 Dog bone chain linkExpiredMay 05, 99Jan 09, 01[F16G]
5966849 Lock system for excavating tooth point and adapter and for riggingExpiredMay 07, 98Oct 19, 99[E02F]
5956874 Tooth assembly and lock systemExpiredMay 07, 98Sep 28, 99[E02F]
5956936 Elongated chain linkExpiredJan 13, 99Sep 28, 99[F16G]
5937551 Lock system for excavating tooth point and adapterExpiredNov 07, 97Aug 17, 99[E02F]
4784339 Impeller shoe for impact crusherExpiredJun 29, 87Nov 15, 88[B02C]
4253706 Magnetic breaker barExpiredMay 24, 79Mar 03, 81[B02C, E21C]

Top Inventors for This Owner

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