Granted Patent
Utility
US 4,340,284 · App. 06/268,561
Temperature-compensated signal transmitting device
Inventors:
Yoshiaki Ohtsubo, Sakuji Watanabe
Patented Case
View Patent ↗
Granted: Jul 20, 1982
Filed: May 29, 1981
Inventors
Yoshiaki Ohtsubo
Sakuji Watanabe
Assignee (at issue)
Nippon Kogaku K.K.
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.