Granted Patent
Utility
US 5,640,749 · App. 08/489,961
Method of and device for elongating and relaxing a stud
Inventor:
John K. Junkers
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Jun 13, 1995
Inventor
John K. Junkers
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.