Granted Patent
Utility
US 4,669,053 · App. 06/615,987
Portable personal computer
Inventor:
Horst M. Krenz
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: May 31, 1984
Inventor
Horst M. Krenz
Assignee (at issue)
Zenith Electronics LLC
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.