Granted Patent
Utility
US 6,185,955 · App. 09/358,855
Refrigerating system which can favorably use as a refrigerant, a fluid smaller in specific volume than a general refrigerant
Inventor:
Kiyokazu Yamamoto
Patented Case
View Patent ↗
Granted: Feb 13, 2001
Filed: Jul 22, 1999
Inventor
Kiyokazu Yamamoto
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.