Granted Patent
Utility
US 4,673,867 · App. 06/879,879
Current mirror circuit and method for providing zero temperature coefficient trimmable current ratios
Inventor:
William F. Davis
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Jun 30, 1986
Inventor
William F. Davis
Assignee (at issue)
Motorola, Inc.
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.