Granted Patent
Utility
US 6,173,479 · App. 09/173,435
Button snap flap closure
Inventor:
Clarence F. Howell
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Oct 15, 1998
Inventor
Clarence F. Howell
Assignee (at issue)
Down East, 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.