Protocol Engineering Limited

Also on record

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

Showing 1 to 5 of 5 · Back to Protocol Engineering Limited

Patent	Title	Status	Expires	Confidence
US 3,946,588	Methods of and apparatus for edge-forming metallic plates Term ended Term ended no later than Mar 30, 1996 · Low confidence	Term ended	Term ended no later than Mar 30, 1996	Low confidence
US 4,380,946	Film punch registration Term ended Term ended no later than Apr 26, 2003 · Low confidence	Term ended	Term ended no later than Apr 26, 2003	Low confidence
US 4,380,956	Mounting of flexible printing plates Term ended Term ended no later than Apr 26, 2003 · Low confidence	Term ended	Term ended no later than Apr 26, 2003	Low confidence
US 4,517,036	Making of printing plates Term ended Term ended no later than May 14, 2005 · Low confidence	Term ended	Term ended no later than May 14, 2005	Low confidence
US 4,594,499	Apparatus for producing a line of separation in a plastic work surface Term ended Term ended no later than Jun 10, 2006 · Low confidence	Term ended	Term ended no later than Jun 10, 2006	Low confidence