Granted Patent
Utility
US 6,035,879 · App. 08/754,815
Automatic fill valve assembly
Inventors:
Sanford F. Campbell, Robert E. Jones, James P. Ellis
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Nov 21, 1996
Inventors
Sanford F. Campbell
Robert E. Jones
James P. Ellis
Assignee (at issue)
Letro 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.