Granted Patent
Utility
US 5,991,986 · App. 09/143,543
Buckle having misthreading preventor
Inventors:
John S. Canna, Kenneth VonFelten
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Aug 28, 1998
Inventors
John S. Canna
Kenneth VonFelten
Assignee (at issue)
MATTEL, 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.