Granted Patent
Utility
US 5,909,709 · App. 08/911,333
Stackable stamps
Inventors:
Suk Ku An, Norman D. Siegfried, Brian L. Adkinson
Patented Case
View Patent ↗
Granted: Jun 8, 1999
Filed: Aug 14, 1997
Inventors
Suk Ku An
Norman D. Siegfried
Brian L. Adkinson
Assignee (at issue)
Fiskars 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.