Granted Patent
Utility
US 6,399,279 · App. 09/232,727
Method for forming a positive image
Inventors:
Toshiyuki Urano, Etsuko Hino, Mitsuru Sasaki
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jan 19, 1999
Inventors
Toshiyuki Urano
Etsuko Hino
Mitsuru Sasaki
Assignee (at issue)
MITSUBISHI CHEMICAL CORPORATION
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.