Granted Patent
Utility
US 4,808,675 · App. 06/945,118
Moisture permeable film for lamination to a textile material
Inventors:
Ian C. Twilley, Robert A. Lofquist
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Dec 22, 1986
Inventors
Ian C. Twilley
Robert A. Lofquist
Assignee (at issue)
AlliedSignal, 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.