Granted Patent
Utility
US 4,486,164 · App. 06/433,770
Blow mold
Inventors:
Robert R. Wilkie, Charles S. Cook
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Jun 17, 1982
Inventors
Robert R. Wilkie
Charles S. Cook
Assignee (at issue)
W. R. Grace & Co., Cryovac Div.
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.