Granted Patent
Utility
US 5,860,574 · App. 08/949,571
Pump assembly with bayonet lock
Inventors:
Donald J. Shanklin, Ronald F. Englhard
Patented Case
View Patent ↗
Granted: Jan 19, 1999
Filed: Oct 14, 1997
Inventors
Donald J. Shanklin
Ronald F. Englhard
Assignee (at issue)
Hayes Products, LLC.
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.