Granted Patent
Utility
US 4,990,977 · App. 07/174,652
High current thin film transistor
Inventors:
Michael Hack, John G. Shaw, Michael Shur
Patented Case
View Patent ↗
Granted: Feb 5, 1991
Filed: Mar 29, 1988
Inventors
Michael Hack
John G. Shaw
Michael Shur
Assignee (at issue)
Xerox 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.