Granted Patent
Utility
US 4,657,262 · App. 06/714,458
Shuttlecocks
Inventor:
Roy William Buckland
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Mar 21, 1985
Inventor
Roy William Buckland
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.