Granted Patent
Utility
US 5,568,258 · App. 08/428,838
Method and device for measuring distortion of a transmitting beam or a surface shape of a three-dimensional object
Inventors:
Ken UEMURA, Yukiko Nagashima, Yasunari Saito, Takao Kurita, Tetsuo Miyake, Kazuaki Shimizu
Patented Case
View Patent ↗
Granted: Oct 22, 1996
Filed: Apr 25, 1995
Inventors
Ken UEMURA
Yukiko Nagashima
Yasunari Saito
Takao Kurita
Tetsuo Miyake
Kazuaki Shimizu
Assignee (at issue)
ASAHI GLASS 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.