Granted Patent
Utility
US 4,377,982 · App. 06/187,923
Spherical vehicle for operation in a fluid medium
Inventor:
Calvin A. Gongwer
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Sep 17, 1980
Inventor
Calvin A. Gongwer
Assignee (at issue)
Bendix Limited
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.