Granted Patent
Utility
US 6,368,225 · App. 09/476,472
Axially collapsible driveshaft assembly and method of manufacturing same
Inventors:
Douglas E. Breese, James A. Duggan
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Dec 30, 1999
Inventors
Douglas E. Breese
James A. Duggan
Assignee (at issue)
Spicer Driveshaft, Inc.
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.