Granted Patent
Utility
US 4,160,153 · App. 05/809,844
Duty cycle shared proportional temperature control
Inventor:
Theodore A. Melander
Patented Case
View Patent ↗
Granted: Jul 3, 1979
Filed: Jun 24, 1977
Inventor
Theodore A. Melander
Assignee (at issue)
Pako 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.