Granted Patent
Utility
US 6,249,200 · App. 09/058,268
Combination of magnets for generating a uniform external magnetic field
Inventors:
Richard E. Stelter, Ging Li Wang
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Apr 10, 1998
Inventors
Richard E. Stelter
Ging Li Wang
Assignee (at issue)
Dexter Magnetic Technologies, 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.