Granted Patent
Utility
US 4,615,438 · App. 06/767,419
Helmet shell assembly and method and apparatus for making
Inventors:
Isadore Rosenberg, Patrick R. Terisse, Valentin Castro
Patented Case
View Patent ↗
Granted: Oct 7, 1986
Filed: Aug 20, 1985
Inventors
Isadore Rosenberg
Patrick R. Terisse
Valentin Castro
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.