Granted Patent
Utility
US 6,520,103 · App. 09/747,074
Boom vang for sailing vessel
Inventors:
Greg Hartlmeier, John Christianson, Douglas Drake
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Dec 21, 2000
Inventors
Greg Hartlmeier
John Christianson
Douglas Drake
Assignee (at issue)
Harken, Incorporated
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.