Granted Patent
Utility
US 5,020,587 · App. 07/607,539
Fully floating tube bundle
Inventors:
Manmohan Mongia, Shelby J. Meade
Patented Case
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Granted: Jun 4, 1991
Filed: Nov 1, 1990
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.