Granted Patent
Utility
US 4,936,399 · App. 07/182,459
Hand held weighing scale
Inventors:
Richard E. Christman, deceased, Steven E. Baumann
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Apr 18, 1988
Inventors
Richard E. Christman, deceased
Steven E. Baumann
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.