Granted Patent
Utility
US 4,414,665 · App. 06/206,902
Semiconductor memory device test apparatus
Inventors:
Kenji Kimura, Shigeru Sugamori, Kohji Ishikawa, Naoaki Narumi
Patented Case
View Patent ↗
Granted: Nov 8, 1983
Filed: Nov 14, 1980
Inventors
Kenji Kimura
Shigeru Sugamori
Kohji Ishikawa
Naoaki Narumi
Assignees (at issue)
Nippon Telegraph and Telephone Public Corporation
Takeda Riken Kogyo Kabushikikaisha
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.