Granted Patent
Utility
US 3,977,885 · App. 05/549,882
Glass manufacturing composition
Inventor:
Frank Bombola
Patented Case
View Patent ↗
Granted: Aug 31, 1976
Filed: Feb 14, 1975
Inventor
Frank Bombola
Assignee (at issue)
E/M Lubricants, 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.