Granted Patent
Utility
US 4,788,413 · App. 07/111,010
System including a portable heat gun for curing advanced composite workpieces
Inventor:
Berwyn S. Eng
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: Oct 21, 1987
Inventor
Berwyn S. Eng
Assignee (at issue)
General Dynamics Corporation Space Systems Division
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.