Granted Patent
Utility
US 4,641,502 · App. 06/883,581
Roof mount air conditioner
Inventors:
Roger L. Aldrich, Peter C. Bodett, Richard E. Kelly
Patented Case
View Patent ↗
Granted: Feb 10, 1987
Filed: Jul 9, 1986
Inventors
Roger L. Aldrich
Peter C. Bodett
Richard E. Kelly
Assignee (at issue)
The Duo-Therm Corporation
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.