Granted Patent
Utility
US 4,533,897 · App. 06/489,342
Miniature thermal switch and method of making the same
Inventors:
Harry W. Olson, Phillip A. Olson
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Apr 28, 1983
Inventors
Harry W. Olson
Phillip A. Olson
Assignee (at issue)
Littelfuse, 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.