Granted Patent
Utility
US 4,607,525 · App. 06/659,210
Height measuring system
Inventors:
Michael D. Turner, Jacques L. Roch
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Oct 9, 1984
Inventors
Michael D. Turner
Jacques L. Roch
Assignee (at issue)
Federal Signal 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.