Granted Patent
Utility
US 4,522,206 · App. 06/461,251
Surgical instrument
Inventors:
Terry L. Whipple, Douglas D. Sjostrom
Patented Case
View Patent ↗
Granted: Jun 11, 1985
Filed: Jan 26, 1983
Inventors
Terry L. Whipple
Douglas D. Sjostrom
Assignee (at issue)
Dyonics, 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.