Granted Patent
Utility
US 5,322,039 · App. 08/128,482
Valve spring top collar
Inventor:
Dan Kinsey
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Sep 28, 1993
Inventor
Dan Kinsey
Assignee (at issue)
S&S CYCLE, INC.
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.