Granted Patent
Utility
US 4,687,702 · App. 06/877,006
Structural insulating panel and method of making the panel
Inventor:
John C. Monsees
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: Jun 20, 1986
Inventor
John C. Monsees
Assignee (at issue)
Chemtronics 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.