Granted Patent
Utility
US 6,544,284 · App. 09/743,842
Sheet-form pack and method of production thereof and method of use thereof
Inventors:
Kazunari Ujihara, Masato Saito, Eiji Hashida
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Mar 12, 2001
Inventors
Kazunari Ujihara
Masato Saito
Eiji Hashida
Assignee (at issue)
KANEBO, 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.