Granted Patent
Utility
US 4,586,136 · App. 06/546,976
Digital computer for determining scuba diving parameters for a particular diver
Inventor:
John E. Lewis
Patented Case
View Patent ↗
Granted: Apr 29, 1986
Filed: Oct 31, 1983
Inventor
John E. Lewis
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.