Granted Patent
Utility
US 6,283,727 · App. 09/551,500
Metering pump
Inventors:
David Borish, Robert Bean, Richard J. Caspar
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Apr 18, 2000
Inventors
David Borish
Robert Bean
Richard J. Caspar
Assignee (at issue)
Milton Bay
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.