Granted Patent
Utility
US 5,339,988 · App. 07/963,152
Disposable tray sump foamer, assembly and methods
Inventors:
Darrel Palmer, Robert P. Cook
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Oct 19, 1992
Inventors
Darrel Palmer
Robert P. Cook
Assignee (at issue)
Ballard Medical Products
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.