Granted Patent
Utility
US 4,239,564 · App. 05/710,041
Method for coating a structure with a uniform foam layer
Inventor:
Gary C. Krumweide
Patented Case
View Patent ↗
Granted: Dec 16, 1980
Filed: Jul 30, 1976
Inventor
Gary C. Krumweide
Assignee (at issue)
General Dynamics 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.