Granted Patent
Utility
US 6,484,749 · App. 09/708,260
Fire-resistant flange spacer
Inventors:
Michael Lim, Richard L. Davis
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Nov 8, 2000
Inventors
Michael Lim
Richard L. Davis
Assignee (at issue)
Coltec Industrial Products, 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.