Granted Patent
Utility
US 5,049,385 · App. 07/213,383
Solid halogen-containing composition and method for producing same
Inventors:
Charles R. Wiedrich, Robert B. Simmons, Jonathan G. Lasch
Patented Case
View Patent ↗
Granted: Sep 17, 1991
Filed: Jun 30, 1988
Inventors
Charles R. Wiedrich
Robert B. Simmons
Jonathan G. Lasch
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.