Granted Patent
Utility
US 4,255,841 · App. 06/068,022
Condenser construction with delayed tube bundles
Inventors:
Robert C. Boyer, George J. Williams
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Aug 20, 1979
Inventors
Robert C. Boyer
George J. Williams
Assignee (at issue)
Ecolaire Incorporated
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.