Granted Patent
Utility
US 5,019,738 · App. 07/568,416
Self-pressurizing gas supported surface-roughness bearing
Inventors:
August O. Weilbach, Derald F. Hanson, C. Dwight Smith
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Jul 16, 1990
Inventors
August O. Weilbach
Derald F. Hanson
C. Dwight Smith
Assignee (at issue)
Lincoln Laser Company
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.