Granted Patent
Utility
US 6,477,992 · App. 10/002,380
Oiling system
Inventors:
David J. Hartke, Richard P. Kolb
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Oct 20, 2001
Inventors
David J. Hartke
Richard P. Kolb
Assignee (at issue)
Bombardier Motor Corporation of America
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.