Granted Patent
Utility
US 6,546,774 · App. 09/938,320
Method of making a lanced and offset fin
Inventor:
Dennis C. Granetzke
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Aug 23, 2001
Inventor
Dennis C. Granetzke
Assignee (at issue)
MODINE MANUFACTURING COMPANY
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.