Granted Patent
Utility
US 5,110,126 · App. 07/722,381
Tennis racket
Inventor:
Siegfried Kuebler
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Jun 26, 1991
Inventor
Siegfried Kuebler
Assignee (at issue)
Head Sportgerate Gesellschaft m.b.H. & Co. OHG
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.