Granted Patent
Utility
US 4,555,972 · App. 06/451,566
Electromagnetic launcher with powder driven projectile insertion
Inventor:
Carl J. Heyne
Patented Case
View Patent ↗
Granted: Dec 3, 1985
Filed: Dec 20, 1982
Inventor
Carl J. Heyne
Assignee (at issue)
Westinghouse Electric Company LLC
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.