Granted Patent
Utility
US 4,228,210 · App. 05/873,545
Plate or the like with serrated opening
Inventor:
Jack B. Scribner
Patented Case
View Patent ↗
Granted: Oct 14, 1980
Filed: Jan 30, 1978
Inventor
Jack B. Scribner
Assignee (at issue)
TRW Limited
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.