Granted Patent
Utility
US 4,568,284 · App. 06/665,452
Dental handpiece
Inventor:
Stanley L. Stankiewicz
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Oct 26, 1984
Inventor
Stanley L. Stankiewicz
Assignee (at issue)
Sybron Corporation
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.