Granted Patent
Utility
US 4,948,766 · App. 07/229,517
Rigid mullite=whisker felt and method of preparation
Inventors:
Inna G. Talmy, Deborah A. Haught
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Aug 5, 1988
Inventors
Inna G. Talmy
Deborah A. Haught
Assignee (at issue)
The United States of America, as represented by the Secretary of the Navy
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.