Granted Patent
Utility
US 6,786,101 · App. 10/159,131
Weld strength determination method, casing structure, casing structure for image forming apparatus, and weld strength determination method in casing for image forming apparatus
Inventors:
Koji Iwai, Tsuneo Ohashi
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Jun 3, 2002
Inventors
Koji Iwai
Tsuneo Ohashi
Assignee (at issue)
CANON KABUSHIKI KAISHA
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.