Granted Patent
Utility
US 6,484,751 · App. 09/799,043
Position detection for rotary control valves
Inventors:
Lawrence R. Lafler, Douglas J. Tanner, Val DiEuliis, Vernon Cottles
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Mar 6, 2001
Inventors
Lawrence R. Lafler
Douglas J. Tanner
Val DiEuliis
Vernon Cottles
Assignee (at issue)
SPX 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.