Granted Patent
Utility
US 4,747,702 · App. 07/027,081
Interlocking closure device having controlled separation and improved ease of occlusion
Inventor:
Gerald H. Scheibner
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Mar 17, 1987
Inventor
Gerald H. Scheibner
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.