Granted Patent
Utility
US 5,218,924 · App. 07/853,924
Milking system with variable pressure source
Inventors:
Paul D. Thompson, Ronald J. Pulvermacher
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Mar 19, 1992
Inventors
Paul D. Thompson
Ronald J. Pulvermacher
Assignee (at issue)
DEC International, 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.