Granted Patent
Utility
US 4,376,643 · App. 06/306,027
Apparatus for conveying glass sheets
Inventors:
Lisa M. Kahle, Stephen J. Schultz
Patented Case
View Patent ↗
Granted: Mar 15, 1983
Filed: Sep 28, 1981
Inventors
Lisa M. Kahle
Stephen J. Schultz
Assignee (at issue)
PPG Industries, 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.