Granted Patent
Utility
US 6,638,414 · App. 09/919,746
Electrode design for electrochemical machining of grooves
Inventors:
Donald J. MacLeod, Klaus Kloeppel, Wesley R. Clark, Roger A. Addy
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Jul 31, 2001
Inventors
Donald J. MacLeod
Klaus Kloeppel
Wesley R. Clark
Roger A. Addy
Assignee (at issue)
Seagate Technology LLC
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.