Granted Patent
Utility
US 6,537,021 · App. 09/875,764
Abradeable seal system
Inventors:
Peter Howard, Ravi Shankar, Richard Fenton
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Jun 6, 2001
Inventors
Peter Howard
Ravi Shankar
Richard Fenton
Assignee (at issue)
Chromalloy Gas Turbine LLC
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.