Granted Patent
Utility
US 5,858,047 · App. 08/606,617
Method and apparatus of bending glass sheets
Inventors:
Robert G. Frank, Mark Cancilla
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Feb 26, 1996
Inventors
Robert G. Frank
Mark Cancilla
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.