Granted Patent
Utility
US 4,147,186 · App. 05/841,223
Thermal insulation assembly
Inventors:
Louis L. Harting, Michael R. Kozlow
Patented Case
View Patent ↗
Granted: Apr 3, 1979
Filed: Oct 11, 1977
Inventors
Louis L. Harting
Michael R. Kozlow
Assignee (at issue)
Carborundum 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.