Granted Patent
Utility
US 4,586,760 · App. 06/616,365
Measuring scale casing and mounting spar
Inventor:
Helmut Welker
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jun 1, 1984
Inventor
Helmut Welker
Assignee (at issue)
BAUSCH & LOMB INCORPORATED
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.