Granted Patent
Utility
US 4,675,212 · App. 06/720,460
Process for manufacturing decorative surface coverings
Inventors:
John Wiley, Charles H. Brower, David Wang
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Apr 5, 1985
Inventors
John Wiley
Charles H. Brower
David Wang
Assignee (at issue)
MANNINGTON MILLS, INC.
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.