Granted Patent
Utility
US 5,331,387 · App. 08/010,171
Printing and binding apparatus
Inventors:
Hisao Okada, Kunio Satoh, Takao Umeda
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Jan 28, 1993
Inventors
Hisao Okada
Kunio Satoh
Takao Umeda
Assignee (at issue)
HITACHI, 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.