Granted Patent
Utility
US 5,043,950 · App. 07/467,662
Apparatus and method for distance determination
Inventors:
Stanley Schorum, Robert D. Butler
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Jan 19, 1990
Inventors
Stanley Schorum
Robert D. Butler
Assignee (at issue)
Science Accessories Corp.
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.