Granted Patent
Utility
US 5,150,690 · App. 07/512,300
Flow control system
Inventors:
Stephen A. Carter, Bryan Williamson, Karl H. Kozole
Patented Case
View Patent ↗
Granted: Sep 29, 1992
Filed: Apr 20, 1990
Inventors
Stephen A. Carter
Bryan Williamson
Karl H. Kozole
Assignee (at issue)
Ortech LLP
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.