Granted Patent
Utility
US 4,496,414 · App. 06/407,918
Method of forming a backing material
Inventors:
Merrill M. Smith, Donald C. Ferguson
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Aug 13, 1982
Inventors
Merrill M. Smith
Donald C. Ferguson
Assignee (at issue)
AMERICAN BILTRITE LTD.
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.