Granted Patent
Utility
US 4,680,977 · App. 06/708,969
Optical flow sensor
Inventors:
Ronald Conero, Terry L. Landis
Patented Case
View Patent ↗
Granted: Jul 21, 1987
Filed: Mar 6, 1985
Inventors
Ronald Conero
Terry L. Landis
Assignee (at issue)
IVAC 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.