Granted Patent
Utility
US 4,242,769 · App. 05/969,380
Anti-exposure inflatable structure
Inventors:
John Rayfield, John D. Schieble
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Dec 14, 1978
Inventors
John Rayfield
John D. Schieble
Assignee (at issue)
ILC Dover, a division of ILC Industries, 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.