Granted Patent
Utility
US 4,246,797 · App. 06/099,954
Pressure Indicator
Inventor:
J. Edgar Myles
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Dec 3, 1979
Inventor
J. Edgar Myles
Assignee (at issue)
J. E. Myles, 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.