Granted Patent
Utility
US 4,374,205 · App. 06/391,317
Stabilization of post-chlorinated vinyl chloride polymers by phosphate salts
Inventor:
Dale R. Hall
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Jun 23, 1982
Inventor
Dale R. Hall
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.