Granted Patent
Utility
US 4,500,319 · App. 06/367,211
Textured pile fabrics
Inventor:
Frank E. Ehrenfeld, Jr.
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: Apr 9, 1982
Inventor
Frank E. Ehrenfeld, Jr.
Assignee (at issue)
CONGOLEUM 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.