Granted Patent
Utility
US 4,215,919 · App. 05/894,455
Refractor optical system
Inventor:
Edward B. Rybicki
Patented Case
View Patent ↗
Granted: Aug 5, 1980
Filed: Apr 7, 1978
Inventor
Edward B. Rybicki
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.