Granted Patent
Utility
US 4,728,396 · App. 06/936,851
Method of operating and threading a coater
Inventor:
Robert J. Alheid
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: Dec 2, 1986
Inventor
Robert J. Alheid
Assignee (at issue)
Beloit 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.