Granted Patent
Utility
US 4,241,801 · App. 05/930,710
Apparatus to measure elongation due to bending under load
Inventor:
Walter P. Kushmuk
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Aug 3, 1978
Inventor
Walter P. Kushmuk
Assignee (at issue)
Continental Scale Corporation
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.