Granted Patent
Utility
US 4,429,802 · App. 06/383,285
Linerless closure cap
Inventor:
Walter Marks
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: May 28, 1982
Inventor
Walter Marks
Assignee (at issue)
ANCHOR HOCKING, 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.