Granted Patent
Utility
US 4,707,572 · App. 06/922,090
Tracer for electrographic surfaces
Inventors:
Robert G. Kable, Philip A. Schlosser
Patented Case
View Patent ↗
Granted: Nov 17, 1987
Filed: Oct 22, 1986
Inventors
Robert G. Kable
Philip A. Schlosser
Assignee (at issue)
Scriptel 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.