Granted Patent
Utility
US 6,604,505 · App. 10/095,302
Method and apparatus for controlling the ignition point in internal combustion engines
Inventor:
Wolfram Hellmich
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Mar 11, 2002
Inventor
Wolfram Hellmich
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.