Granted Patent
Utility
US 6,250,103 · App. 09/544,098
Condenser and air conditioning refrigeration system and using same
Inventors:
Hirohiko Watanabe, Ryoichi Hoshino, Yasuhiro Takahashi
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Apr 6, 2000
Inventors
Hirohiko Watanabe
Ryoichi Hoshino
Yasuhiro Takahashi
Assignee (at issue)
Showa Denko 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.