DIVERSIFIED METAL FABRICATORS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B60F VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES 16

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9643463 Rail gearMar 15, 13May 09, 17[B60F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6192736 Tribometer for testing the efficiency of lubrication upon a railroad track surfaceExpiredSep 23, 98Feb 27, 01[G01N, G01B]
4583465 Railway wheel apparatus for a road vehicleExpiredOct 29, 84Apr 22, 86[B61F, B61D]
4488494 Railway wheel conversion apparatus for road vehiclesExpiredFeb 11, 83Dec 18, 84[B61F, B61D]

Top Inventors for This Owner

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