Granted Patent
Utility
US 5,227,794 · App. 07/812,556
Frequency multiplexed analog-digital conversion
Inventor:
J. William Whikehart
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Dec 23, 1991
Inventor
J. William Whikehart
Assignee (at issue)
Ford Motor Company
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.