Granted Patent
Utility
US 6,318,236 · App. 09/291,303
Reciprocal motion type compressor having a piston in which strength is increased
Inventors:
Kiyoshi Miyazawa, Yujiro Morita
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Apr 15, 1999
Inventors
Kiyoshi Miyazawa
Yujiro Morita
Assignee (at issue)
SANDEN 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.