Granted Patent
Utility
US 4,298,653 · App. 06/114,532
Method for producing an improved bundle of a plurality of fiber glass strands
Inventor:
John Maaghul
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Jan 23, 1980
Inventor
John Maaghul
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.