Granted Patent
Utility
US 4,810,080 · App. 07/092,488
Protective eyewear with removable nosepiece and corrective spectacle
Inventors:
Clark L. Grendol, Arlene J. Philla
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Sep 3, 1987
Inventors
Clark L. Grendol
Arlene J. Philla
Assignee (at issue)
American Optical Corporation
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.