Granted Patent
Utility
US 4,843,655 · App. 07/133,721
Protective goggles
Inventor:
Erich Hegendorfer
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Dec 15, 1987
Inventor
Erich Hegendorfer
Assignee (at issue)
Alpina Int'l Sport + Optik-Vertriebs-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.