Granted Patent
Utility
US 4,676,813 · App. 06/809,999
Method and apparatus for forming glass fibers
Inventors:
Terry Joe Hanna, Neil E. Greene
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Dec 17, 1985
Inventors
Terry Joe Hanna
Neil E. Greene
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.