Granted Patent
Utility
US 4,522,639 · App. 06/485,179
Unified filter and connector housing assembly incorporating a diversion valve
Inventors:
William K. Ansite, James H. Ryder
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Apr 15, 1983
Inventors
William K. Ansite
James H. Ryder
Assignee (at issue)
Figgie Inernational 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.