Granted Patent
Utility
US 4,770,981 · App. 07/063,756
Heat-development-type color light-sensitive material
Inventors:
Tawara Komamura, Masaru Iwagaki, Toyoaki Masukawa
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Jun 17, 1987
Inventors
Tawara Komamura
Masaru Iwagaki
Toyoaki Masukawa
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.