Granted Patent
Utility
US 5,281,386 · App. 07/935,915
Method for shaping the center hole of a coreless paper roll
Inventor:
Lawrence E. Weinert
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Aug 27, 1992
Inventor
Lawrence E. Weinert
Assignee (at issue)
James River Paper Company, Inc.
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.