Granted Patent
Utility
US 4,686,992 · App. 06/729,985
Ophthalmic beam director
Inventors:
David A. Dewey, Paul C. Pynckel
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: May 3, 1985
Inventors
David A. Dewey
Paul C. Pynckel
Assignee (at issue)
Coopervision, 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.