Granted Patent
Utility
US 4,462,245 · App. 06/439,893
Apparatus for testing abrasion resistance of printed surfaces
Inventors:
Richard J. Gould, George M. Seiter
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Nov 8, 1982
Inventors
Richard J. Gould
George M. Seiter
Assignee (at issue)
Champion International Corporation Limited
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.