Granted Patent
Utility
US 4,004,872 · App. 05/585,933
Apparatus for blow molding plastic articles
Inventors:
Thomas J. Krall, Albert R. Uhlig
Patented Case
View Patent ↗
Granted: Jan 25, 1977
Filed: Jun 11, 1975
Inventors
Thomas J. Krall
Albert R. Uhlig
Assignee (at issue)
Owens-Illinois Inc.
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.