Granted Patent
Utility
US 5,594,959 · App. 08/476,422
Dual-flush refill apparatus
Inventors:
David Nichols-Roy, Dennis D. Woods
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Jun 7, 1995
Inventors
David Nichols-Roy
Dennis D. Woods
Assignee (at issue)
Hunter Plumbing 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.