Granted Patent
Utility
US 4,869,504 · App. 07/248,908
Football and lacing for footballs
Inventor:
Douglas R. Kralik
Patented Case
View Patent ↗
Granted: Sep 26, 1989
Filed: Sep 26, 1988
Inventor
Douglas R. Kralik
Assignee (at issue)
Figgie Inernational 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.