Granted Patent
Utility
US 4,842,465 · App. 06/368,959
Insulation hanger with locking device
Inventors:
Charles C. Pease, Eugene P. Schaeffer, Kevin L. Bernd, David A. Higton
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Apr 16, 1982
Inventors
Charles C. Pease
Eugene P. Schaeffer
Kevin L. Bernd
David A. Higton
Assignee (at issue)
KSM Fastening Systems 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.