Granted Patent
Utility
US 4,878,156 · App. 07/319,048
Quick release focusing handle for surgical lights
Inventors:
Leonard L. Hallings, Richard W. Steiner
Patented Case
View Patent ↗
Granted: Oct 31, 1989
Filed: Mar 6, 1989
Inventors
Leonard L. Hallings
Richard W. Steiner
Assignee (at issue)
MDT CO.,LTD.
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.