Granted Patent
Utility
US 4,520,949 · App. 06/483,865
Protective housing for coating applicator
Inventors:
David M. Seitz, Richard Weinstein
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Apr 11, 1983
Inventors
David M. Seitz
Richard Weinstein
Assignee (at issue)
Champion Spark Plug Company
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.