Granted Patent
Utility
US 4,982,903 · App. 07/357,851
Peristaltic voltage block
Inventors:
Chris M. Jamison, Eric Petersen
Patented Case
View Patent ↗
Granted: Jan 8, 1991
Filed: May 31, 1989
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.