Granted Patent
Utility
US 4,311,509 · App. 06/191,470
Apparatus for conveying glass sheets
Inventors:
William D. Reader, Terry L. Wolfe
Patented Case
View Patent ↗
Granted: Jan 19, 1982
Filed: Sep 26, 1980
Inventors
William D. Reader
Terry L. Wolfe
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.