Granted Patent
Utility
US 4,572,498 · App. 06/536,203
Sheet feeder
Inventor:
Takao Shiozawa
Patented Case
View Patent ↗
Granted: Feb 25, 1986
Filed: Sep 27, 1983
Inventor
Takao Shiozawa
Assignee (at issue)
Konishiroku Photo Industry 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.