Granted Patent
Utility
US 4,612,240 · App. 06/721,505
Thermally matched coatings for ceramic fiber insulation
Inventors:
Thomas A. Johnson, Charles A. Hill
Patented Case
View Patent ↗
Granted: Sep 16, 1986
Filed: Apr 11, 1985
Inventors
Thomas A. Johnson
Charles A. Hill
Assignee (at issue)
The Babcock & Wilcox Company
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.