Granted Patent
Utility
US 4,700,056 · App. 06/797,434
Objective lens focus initialization system
Inventors:
Dorrel R. Silvy, Todd D. Baumann, Roger R. Bracht
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Nov 13, 1985
Inventors
Dorrel R. Silvy
Todd D. Baumann
Roger R. Bracht
Assignee (at issue)
OptoTech AG
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.