Granted Patent
Utility
US 4,555,492 · App. 06/585,089
High temperature refractory fiber
Inventors:
Wendell G. Ekdahl, Asit R. Chaudhuri, William C. Miiller
Patented Case
View Patent ↗
Granted: Nov 26, 1985
Filed: Mar 1, 1984
Inventors
Wendell G. Ekdahl
Asit R. Chaudhuri
William C. Miiller
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.