Granted Patent
Utility
US 4,602,471 · App. 06/737,856
Roll-up method and apparatus for mineral fiber pack
Inventors:
William E. Gray, Ronald R. Harris
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: May 28, 1985
Inventors
William E. Gray
Ronald R. Harris
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.