Granted Patent
Utility
US 3,993,237 · App. 05/595,738
Method for providing high-temperature internal insulation
Inventors:
Robert A. Sauder, Gary R. Kendrick, John R. Mase
Patented Case
View Patent ↗
Granted: Nov 23, 1976
Filed: Jul 14, 1975
Inventors
Robert A. Sauder
Gary R. Kendrick
John R. Mase
Assignee (at issue)
Sauder Industries, Inc.
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.