Granted Patent
Utility
US 4,280,485 · App. 06/139,321
Compression device with simulator
Inventor:
Edward J. Arkans
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Apr 11, 1980
Inventor
Edward J. Arkans
Assignee (at issue)
The Kendall Company LP
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.