Barkman Concrete Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
E01C CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR 128
 
 
 
2501 BUILDING MATERIALS134

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9476163 Wood grain concrete paving slabsJun 18, 15Oct 25, 16[B44F, E01C]
D634859 Paving stoneAug 28, 08Mar 22, 11[2501]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D259068 Hog feederExpiredDec 08, 78Apr 28, 81[D300]

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