Granted Patent
Utility
US 4,737,178 · App. 06/926,923
Method for manufacturing mineral fibers
Inventors:
Louis G. Reifschneider, Michael Rolf
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Oct 27, 1986
Inventors
Louis G. Reifschneider
Michael Rolf
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.