Granted Patent
Utility
US 4,208,152 · App. 05/953,504
Diver support apparatus
Inventor:
John R. Colston
Patented Case
View Patent ↗
Granted: Jun 17, 1980
Filed: Oct 23, 1978
Inventor
John R. Colston
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.