Granted Patent
Utility
US 6,636,228 · App. 09/876,490
Method of ensuring adequate contrast of graphical user interface elements
Inventors:
David A. Morton, Greg M. Lewis
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Jun 7, 2001
Inventors
David A. Morton
Greg M. Lewis
Assignee (at issue)
Microsoft Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.