Granted Patent
Utility
US 4,088,723 · App. 05/661,907
Method of preparing honeycomb insulation structure
Inventor:
Richard V. Norton
Patented Case
View Patent ↗
Granted: May 9, 1978
Filed: Feb 26, 1976
Inventor
Richard V. Norton
Assignee (at issue)
SUNTEC CO., LTD.
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.