Granted Patent
Utility
US 4,987,639 · App. 07/293,888
Frangible fastening construction for handles and method of fastening
Inventors:
David E. Baiuley, Josef Bingisser
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Jan 5, 1989
Inventors
David E. Baiuley
Josef Bingisser
Assignee (at issue)
Ropak Corporation
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.