Granted Patent
Utility
US 4,238,802 · App. 05/970,284
Differential drive rolling arc gimbal
Inventor:
John M. Speicher
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Dec 18, 1978
Inventor
John M. Speicher
Assignee (at issue)
General Dynamics Corp., Pomona 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.