Granted Patent
Utility
US 6,708,952 · App. 10/388,866
Valve seat
Inventors:
Craig F. Brennecke, Donald A. Mills
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Mar 14, 2003
Inventors
Craig F. Brennecke
Donald A. Mills
Assignee (at issue)
McLanahan 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.