Granted Patent
Utility
US 5,158,134 · App. 07/693,709
Fully floating tube bundle
Inventors:
Manmohan Mongia, Shelby J. Meade
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Apr 30, 1991
Inventors
Manmohan Mongia
Shelby J. Meade
Assignee (at issue)
Lennox Industries 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.