Granted Patent
Utility
US 4,352,732 · App. 06/296,592
Flotation system
Inventor:
Raymond C. Massicotte
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: Aug 26, 1981
Inventor
Raymond C. Massicotte
Assignee (at issue)
KELSEY-HAYES-COMPANY
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.