Granted Patent
Utility
US 6,068,588 · App. 09/227,107
Counterbalanced pump
Inventor:
Michael P. Goldowsky
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Jan 7, 1999
Inventor
Michael P. Goldowsky
Assignee (at issue)
International Business Machines 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.