Granted Patent
Utility
US 6,823,768 · App. 10/300,806
Nitrided surface layer on a swash plate boss
Inventor:
Shinji Tagami
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Nov 21, 2002
Inventor
Shinji Tagami
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.