Granted Patent
Utility
US 4,681,796 · App. 06/778,408
Thermal transfer recording medium
Inventors:
Tatsuichi Maehashi, Takao Abe, Kunihiro Koshizuka, Yoshihiro Inaba
Patented Case
View Patent ↗
Granted: Jul 21, 1987
Filed: Sep 20, 1985
Inventors
Tatsuichi Maehashi
Takao Abe
Kunihiro Koshizuka
Yoshihiro Inaba
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.