Granted Patent
Utility
US 4,424,441 · App. 06/273,164
Method and apparatus for inspecting glass containers
Inventors:
Robert J. Bieringer, Sam Lovalenti
Patented Case
View Patent ↗
Granted: Jan 3, 1984
Filed: Jun 12, 1981
Inventors
Robert J. Bieringer
Sam Lovalenti
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.