Granted Patent
Utility
US 4,850,198 · App. 07/297,920
Time based cooling below set point temperature
Inventors:
Robert W. Helt, John D. Neal
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Jan 17, 1989
Inventors
Robert W. Helt
John D. Neal
Assignee (at issue)
American Standard 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.