Granted Patent
Utility
US 4,331,497 · App. 06/211,492
Composite shell
Inventors:
John J. Gilman, Ralph R. Saunders
Patented Case
View Patent ↗
Granted: May 25, 1982
Filed: Dec 1, 1980
Inventors
John J. Gilman
Ralph R. Saunders
Assignee (at issue)
ALLIED CONSULTING, 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.