Granted Patent
Utility
US 4,265,357 · App. 05/786,741
Article infeed gate and control therefor
Inventors:
Stephen W. Amberg, Clyde F. Hadl
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Apr 11, 1977
Inventors
Stephen W. Amberg
Clyde F. Hadl
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.