Granted Patent
Utility
US 4,484,596 · App. 06/516,686
Means for securing valve disc to valve spindle
Inventors:
Robert C. Hikade, Glen Swift
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Jul 25, 1983
Inventors
Robert C. Hikade
Glen Swift
Assignee (at issue)
Vilter Manufacturing 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.