Granted Patent
Utility
US 6,431,813 · App. 09/810,610
Unwrapping apparatus
Inventors:
Fumio Sugaya, Yoichi Endo, Akihiro Komatsu, Tomoyuki Takiue
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Mar 19, 2001
Inventors
Fumio Sugaya
Yoichi Endo
Akihiro Komatsu
Tomoyuki Takiue
Assignee (at issue)
Photo Film Co., Ltd.
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.