Granted Patent
Utility
US 4,533,615 · App. 06/665,895
Abrasion development
Inventors:
Jonathan S. Arney, Richard F. Wright
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Oct 29, 1984
Inventors
Jonathan S. Arney
Richard F. Wright
Assignee (at issue)
The Mead 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.