Granted Patent
Utility
US 5,636,635 · App. 08/398,789
Non-contact tonometer
Inventors:
Norbert A. Massie, Bruce W. Maxfield
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Mar 6, 1995
Inventors
Norbert A. Massie
Bruce W. Maxfield
Assignee (at issue)
Massie Research Laboratories, Inc.
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.