Granted Patent
Utility
US 4,607,058 · App. 06/736,161
Process for preparing high bulk density vinyl resins
Inventor:
Paul O. Hong
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: May 20, 1985
Inventor
Paul O. Hong
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.