Granted Patent
Utility
US 6,808,179 · App. 09/127,372
Turbomachinery seal
Inventors:
Abhijit Bhattacharyya, William D. Marscher
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jul 31, 1998
Inventors
Abhijit Bhattacharyya
William D. Marscher
Assignee (at issue)
Concepts ETI, 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.