Granted Patent
Utility
US 4,235,167 · App. 06/019,393
High speed dual pitch impact printer
Inventor:
Kenneth Staugaard
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Mar 12, 1979
Inventor
Kenneth Staugaard
Assignee (at issue)
Computer Peripherals 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.