Granted Patent
Utility
US 6,231,325 · App. 09/577,486
Scroll-type compressor
Inventors:
Norio Kitano, Kanetsugu Tsurutani
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: May 25, 2000
Inventors
Norio Kitano
Kanetsugu Tsurutani
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.