Granted Patent
Utility
US 4,319,908 · App. 06/210,658
Float glass forming chamber with a flat slab roof
Inventor:
John E. Sensi
Patented Case
View Patent ↗
Granted: Mar 16, 1982
Filed: Nov 26, 1980
Inventor
John E. Sensi
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.