Granted Patent
Utility
US 6,721,128 · App. 08/997,621
Closure seal for a storage device
Inventors:
Yoshiaki Koizumi, Shinichi Fukuzawa, Kiyoko Morii
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Dec 23, 1997
Inventors
Yoshiaki Koizumi
Shinichi Fukuzawa
Kiyoko Morii
Assignee (at issue)
Fujitsu 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.