Granted Patent
Utility
US 4,368,258 · App. 06/242,580
Process for preparing impregnated polymer latex compositions
Inventors:
Mitsuto Fujiwhara, Syunji Matsuo, Tsuneo Wada, Naoto Abe, Toyoaki Masukawa, Akio Iijima, Keiji Oishi
Patented Case
View Patent ↗
Granted: Jan 11, 1983
Filed: Mar 11, 1981
Inventors
Mitsuto Fujiwhara
Syunji Matsuo
Tsuneo Wada
Naoto Abe
Toyoaki Masukawa
Akio Iijima
Keiji Oishi
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.