Granted Patent
Utility
US 4,854,017 · App. 07/122,589
Multiposition interlocking closure fastening device
Inventor:
Ewald A. Kamp
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Nov 17, 1987
Inventor
Ewald A. Kamp
Assignee (at issue)
First Brands 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.