Granted Patent
Utility
US 4,437,462 · App. 06/322,775
Pneumatic head harness
Inventors:
Robert E. Piljay, Loyal G. Netteland
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Nov 19, 1981
Inventors
Robert E. Piljay
Loyal G. Netteland
Assignee (at issue)
Figgie Inernational Inc.
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.