Granted Patent
Utility
US 6,619,119 · App. 09/476,473
Balance weight for vehicular driveshaft
Inventors:
James A. Duggan, Calvin W. Szymkowiak, Gerald L. Myers
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Dec 30, 1999
Inventors
James A. Duggan
Calvin W. Szymkowiak
Gerald L. Myers
Assignee (at issue)
Torque-Traction Technologies 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.