Granted Patent
Utility
US 4,413,065 · App. 06/465,130
Process for making low density chlorinated polyvinyl chloride foam
Inventors:
Dale R. Hall, Charles N. Bush
Patented Case
View Patent ↗
Granted: Nov 1, 1983
Filed: Feb 9, 1983
Inventors
Dale R. Hall
Charles N. Bush
Assignee (at issue)
B. F. Goodrich Company
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.