NATIONAL CANADA FINANCE CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
E05D HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS, OR WINGS 133
 
  
 
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION158
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5456283 Infinite hydraulic checkAug 25, 93Oct 10, 95[F16K, F16F]
5452501 Hinge and check assemblySep 28, 93Sep 26, 95[E05D]
5236325 Apparatus for producing an extruded profile with thrust-resistant spacerNov 18, 91Aug 17, 93[B29C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5718411 Anti-theft device for a spare tire carrierExpiredJun 07, 95Feb 17, 98[B66D]
5238165 Extrudate hauler with upper and lower endless tracks with yaw adjustmentExpiredNov 18, 91Aug 24, 93[B65H]
5228661 Spare tire carrier and winchExpiredJan 09, 91Jul 20, 93[B66D]
5198242 Rotary turret embosserExpiredDec 10, 91Mar 30, 93[B29C]
5067340 Precision press brakeExpiredMay 03, 89Nov 26, 91[B21D]
5018243 Vehicle door hinge with compound roller structureExpiredOct 12, 90May 28, 91[E05D]
4967800 Secondary confinement pipe having segments with interlocking rib and groove joints and coextruded sealant layers #4ExpiredJan 23, 89Nov 06, 90[F16L]
4959131 Gas phase CO.sub.2 reduction to hydrocarbons at solid polymer electrolyte cellsExpiredOct 14, 88Sep 25, 90[C25B]
4911628 Triwall siding apparatusExpiredOct 05, 88Mar 27, 90[B29C]
4874306 Siding dieExpiredNov 30, 88Oct 17, 89[B29C]
4867669 Safety air plug and extrusion apparatus using sameExpiredOct 24, 88Sep 19, 89[B29C]
4856975 Coextrusion block, especially for the coextrusion of generally flat PVC articles, such as sidingExpiredAug 26, 88Aug 15, 89[B29C]
4846648 Triple-wall foam coextrusion apparatusExpiredDec 31, 87Jul 11, 89[B29C]
4823606 Diaphragm transducer for sensing loadingExpiredJun 23, 88Apr 25, 89[F16B]
4744127 Door hingeExpiredAug 11, 86May 17, 88[E05D]
4745348 Apparatus for starting and running a plurality of three-phase motors from a single-phase power sourceExpiredSep 22, 86May 17, 88[H02P]
4731002 Triple-wall foam coextrusion apparatusExpiredNov 19, 86Mar 15, 88[B29C]
4630490 Compression strain gauge transducer assemblyExpiredJul 12, 85Dec 23, 86[G01L, G01B]
4553124 Strain gauge transducer assemblyExpiredMay 10, 85Nov 12, 85[G01L]
4541270 Apparatus for testing plastic compositionsExpiredMar 01, 84Sep 17, 85[G01N]

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