Granted Patent
Utility
US 4,312,686 · App. 06/120,536
Printed and embossed floor covering and method and apparatus for its manufacture
Inventors:
Merrill M. Smith, Ernest R. Holmstrom, Donald C. Ferguson
Patented Case
View Patent ↗
Granted: Jan 26, 1982
Filed: Feb 11, 1980
Inventors
Merrill M. Smith
Ernest R. Holmstrom
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.