Granted Patent
Utility
US 5,477,715 · App. 08/341,307
Adaptive spring winding device and method
Inventor:
Mark Kempf
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Nov 16, 1994
Inventor
Mark Kempf
Assignee (at issue)
Reell Precision Manufacturing Corporation
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.