Granted Patent
Utility
US 4,599,055 · App. 06/748,578
Peristaltic pump
Inventor:
Raymond C. Dykstra
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Jun 25, 1985
Inventor
Raymond C. Dykstra
Assignee (at issue)
Cobe Laboratories, Inc.
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.