Granted Patent
Utility
US 3,950,468 · App. 05/498,472
Injection blow molding of container open at both ends
Inventor:
Dewey Rainville
Patented Case
View Patent ↗
Granted: Apr 13, 1976
Filed: Aug 19, 1974
Inventor
Dewey Rainville
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.