Granted Patent
Utility
US 5,928,512 · App. 08/626,823
Demountable filter for a bottle or the like
Inventors:
Gary L. Hatch, Robert S. Frank
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: Apr 3, 1996
Inventors
Gary L. Hatch
Robert S. Frank
Assignee (at issue)
Plymouth Products, 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.