Granted Patent
Utility
US 4,837,141 · App. 07/191,781
Thermally developable light-sensitive material containing a development restrainer compound
Inventors:
Junichi Kohno, Ken Okauchi, Sohei Goto, Masaru Iwagaki, Tawara Komamura
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: May 3, 1988
Inventors
Junichi Kohno
Ken Okauchi
Sohei Goto
Masaru Iwagaki
Tawara Komamura
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.