Granted Patent
Utility
US 4,271,416 · App. 06/081,337
Slit type ink recording apparatus
Inventors:
Toshio Shimizu, Susumu Ichinose, Yuji Ooba
Patented Case
View Patent ↗
Granted: Jun 2, 1981
Filed: Oct 3, 1979
Inventors
Toshio Shimizu
Susumu Ichinose
Yuji Ooba
Assignee (at issue)
Nippon Telegraph and Telephone Public Corporation
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.