Granted Patent
Utility
US 4,996,573 · App. 07/428,814
Vertical thin film transistor and optical sensor having leakage current suppression elements
Inventors:
Michael Hack, John G. Shaw, Michael Shur
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Oct 27, 1989
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.