Granted Patent
Utility
US 4,556,828 · App. 06/548,176
Electric motor adapted to permit translational motion between field and armature
Inventor:
Thomas W. Thompson
Patented Case
View Patent ↗
Granted: Dec 3, 1985
Filed: Nov 2, 1983
Inventor
Thomas W. Thompson
Assignee (at issue)
Sanders GmbH
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.