Granted Patent
Utility
US 5,782,676 · App. 08/963,442
Resilient lifter for wire coil blast cleaning apparatus
Inventor:
John Pedersen
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Nov 3, 1997
Inventor
John Pedersen
Assignee (at issue)
Blast Cleaning Products Ltd.
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.