Granted Patent
Utility
US 4,878,622 · App. 07/208,774
Peristaltic voltage block
Inventors:
Chris M. Jamison, Eric Petersen
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Jun 17, 1988
Inventors
Chris M. Jamison
Eric Petersen
Assignee (at issue)
Ransburg 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.