Granted Patent
Utility
US 5,408,174 · App. 08/082,690
Switched capacitor current reference
Inventor:
Robert H. Leonowich
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Jun 25, 1993
Inventor
Robert H. Leonowich
Assignee (at issue)
AT&T CORP.
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.