Granted Patent
Utility
US 4,893,899 · App. 07/181,989
Adjustable control mechanism for optical instruments
Inventor:
Claus O. Huckenbeck
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Apr 15, 1988
Inventor
Claus O. Huckenbeck
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.