Granted Patent
Utility
US 4,506,205 · App. 06/502,998
Electro-magnetic alignment apparatus
Inventors:
David Trost, Daniel N. Galburt
Patented Case
View Patent ↗
Granted: Mar 19, 1985
Filed: Jun 10, 1983
Inventors
David Trost
Daniel N. Galburt
Assignee (at issue)
PerkinElmer, 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.