Granted Patent
Utility
US 4,279,040 · App. 06/179,357
Diving mask
Inventor:
Giovanni Garofalo
Patented Case
View Patent ↗
Granted: Jul 21, 1981
Filed: Aug 18, 1980
Inventor
Giovanni Garofalo
Assignee (at issue)
AMF GmbH
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.