Granted Patent
Utility
US 6,532,785 · App. 09/996,316
Method and apparatus for prefilling and hydroforming parts
Inventor:
Romuald Gmurowski
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Nov 20, 2001
Inventor
Romuald Gmurowski
Assignee (at issue)
General Motors 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.