Granted Patent
Utility
US 4,581,882 · App. 06/662,859
Refractory fiber rope packing
Inventors:
John M. Pallo, Bernard Kotyuk
Patented Case
View Patent ↗
Granted: Apr 15, 1986
Filed: Oct 19, 1984
Inventors
John M. Pallo
Bernard Kotyuk
Assignee (at issue)
Manville Service Corporation
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.