Granted Patent
Utility
US 4,604,436 · App. 06/132,739
Process for metal modified phenolic novolac resin
Inventors:
Donald H. Thorpe, Raymond P. Knipple
Patented Case
View Patent ↗
Granted: Aug 5, 1986
Filed: Mar 24, 1980
Inventors
Donald H. Thorpe
Raymond P. Knipple
Assignee (at issue)
Occidental Chemical 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.