Refac Electronics Corporation

Also on record

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

Showing 1 to 9 of 9 · Back to Refac Electronics Corporation

Patent	Title	Status	Expires	Confidence
US 3,955,355	Electronic calculator watch structures Formerly held Term ended Term ended no later than May 11, 1996 · Low confidence	Term ended	Term ended no later than May 11, 1996	Low confidence
US 4,000,437	Electric display device Formerly held Term ended Term ended no later than Dec 28, 1996 · Low confidence	Term ended	Term ended no later than Dec 28, 1996	Low confidence
US 4,008,564	Liquid crystal display device Formerly held Term ended Term ended no later than Feb 22, 1997 · Low confidence	Term ended	Term ended no later than Feb 22, 1997	Low confidence
US 4,120,568	Electrochromic cell with protective overcoat layer Term ended Term ended no later than Oct 17, 1998 · Low confidence	Term ended	Term ended no later than Oct 17, 1998	Low confidence
US 4,172,925	Photoelectrochemical cell Term ended Term ended no later than Oct 30, 1999 · Low confidence	Term ended	Term ended no later than Oct 30, 1999	Low confidence
US 4,257,046	Simultaneous color and bleach of ECD Term ended Term ended no later than Mar 17, 2001 · Low confidence	Term ended	Term ended no later than Mar 17, 2001	Low confidence
US 4,266,338	Method of manufacturing photoelectrochemical cell Term ended Term ended no later than May 12, 2001 · Low confidence	Term ended	Term ended no later than May 12, 2001	Low confidence
US 4,641,090	Polyphase electrical signal measuring apparatus Term ended Term ended no later than Feb 3, 2007 · Low confidence	Term ended	Term ended no later than Feb 3, 2007	Low confidence
US 4,788,494	Power measuring apparatus Term ended Term ended no later than Nov 29, 2008 · Low confidence	Term ended	Term ended no later than Nov 29, 2008	Low confidence