Granted Patent
Utility
US 4,589,709 · App. 06/661,637
Locking cover for air conditioner
Inventors:
Ralph W. Bond, Harold W. Pitz
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Oct 17, 1984
Inventors
Ralph W. Bond
Harold W. Pitz
Assignee (at issue)
Amana Refrigeration, 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.