Granted Patent
Utility
US 4,460,820 · App. 06/400,531
Apparatus for heating heat-shrinkable tubes
Inventors:
Michito Matsumoto, Toshiaki Kakii, Yuichi Toda
Patented Case
View Patent ↗
Granted: Jul 17, 1984
Filed: Jul 21, 1982
Inventors
Michito Matsumoto
Toshiaki Kakii
Yuichi Toda
Assignees (at issue)
Nippon Telegraph and Telephone Public Corporation
SUMITOMO ELECTRIC INDUSTRIES, 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.