Granted Patent
Utility
US 4,838,468 · App. 06/593,403
Reel for registry of a material web provided with crease lines
Inventor:
Håkan Lesse
Patented Case
View Patent ↗
Granted: Jun 13, 1989
Filed: Mar 26, 1984
Inventor
Håkan Lesse
Assignee (at issue)
AB TetraPak
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.