Granted Patent
Utility
US 6,499,770 · App. 09/968,264
Flexible duct for a microturbine
Inventors:
David G. Glista, Andrew J. Olsen
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Oct 1, 2001
Inventors
David G. Glista
Andrew J. Olsen
Assignee (at issue)
Ingersoll Rand Energy Systems 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.