Granted Patent
Utility
US 4,887,414 · App. 07/240,975
Article separating and loading apparatus
Inventor:
John P. Arena
Patented Case
View Patent ↗
Granted: Dec 19, 1989
Filed: Sep 6, 1988
Inventor
John P. Arena
Assignee (at issue)
Manville Corporation
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.