Granted Patent
Utility
US 4,446,288 · App. 06/337,151
Polymerization method
Inventor:
Raymond E. Hoff
Patented Case
View Patent ↗
Granted: May 1, 1984
Filed: Jan 4, 1982
Inventor
Raymond E. Hoff
Assignee (at issue)
Chemplex, Ltd.
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.