Granted Patent
Utility
US 4,922,569 · App. 07/353,810
Hand tool
Inventors:
Barry Brinker, John E. Busse
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: May 18, 1989
Inventors
Barry Brinker
John E. Busse
Assignee (at issue)
TOTES LLC
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.