Granted Patent
Utility
US 5,620,752 · App. 08/455,961
Method and apparatus for drying sized glass fibers
Inventor:
Douglas B. Mann
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: May 31, 1995
Inventor
Douglas B. Mann
Assignee (at issue)
Owens-Corning Fiberglas Technology, 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.