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Commercial Intertech Corp.

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Records under this name other than patents Commercial Intertech Corp. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

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PatentTitleStatus Expires Confidence
US 6,038,957Control valves
Lapsed on the fee record
Ended Mar 21, 2012 · From the USPTO record
Lapsed on the fee recordEnded Mar 21, 2012From the USPTO record
US 4,358,724Solid state servo amplifier for a D.C. motor position control system
Formerly held
Term ended
Term ended no later than Nov 9, 2002 · Low confidence
Term endedTerm ended no later than Nov 9, 2002Low confidence
US 4,470,776Methods and apparatus for gear pump lubrication
Formerly held
Term ended
Term ended no later than Sep 11, 2004 · Low confidence
Term endedTerm ended no later than Sep 11, 2004Low confidence
US 4,497,597Cribbing
Formerly held
Term ended
Term ended no later than Feb 5, 2005 · Low confidence
Term endedTerm ended no later than Feb 5, 2005Low confidence
US 4,519,419Hydraulic valves
Formerly held
Term ended
Term ended no later than May 28, 2005 · Low confidence
Term endedTerm ended no later than May 28, 2005Low confidence
US 4,519,420Hydraulic valves
Formerly held
Term ended
Term ended no later than May 28, 2005 · Low confidence
Term endedTerm ended no later than May 28, 2005Low confidence
US 4,543,649System for ultrasonically detecting the relative position of a moveable device
Term ended
Term ended no later than Sep 24, 2005 · Low confidence
Term endedTerm ended no later than Sep 24, 2005Low confidence
US 4,565,469Cribbing
Formerly held
Term ended
Term ended no later than Jan 21, 2006 · Low confidence
Term endedTerm ended no later than Jan 21, 2006Low confidence
US 4,569,367Hydraulic valve inlet unloaders
Formerly held
Term ended
Term ended no later than Feb 11, 2006 · Low confidence
Term endedTerm ended no later than Feb 11, 2006Low confidence
US 4,569,372Remote valve operators
Formerly held
Term ended
Term ended no later than Feb 11, 2006 · Low confidence
Term endedTerm ended no later than Feb 11, 2006Low confidence
10 of 32 patents shown.
Pro members see all 32.
Pro members: see all 32 patents
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