Granted Patent
Utility
US 4,491,433 · App. 06/527,234
Venting and ink recycling device
Inventors:
John Shiurila, Kenneth A. Robert
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: Aug 29, 1983
Inventors
John Shiurila
Kenneth A. Robert
Assignee (at issue)
Centronics Data Computer Corporation
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.