Granted Patent
Utility
US 5,046,486 · App. 07/297,841
Compact pulsing pump for irrigation handpiece
Inventors:
David H. Grulke, Douglas L. Tyler, Sr., William M. Booth
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: Jan 13, 1989
Inventors
David H. Grulke
Douglas L. Tyler, Sr.
William M. Booth
Assignee (at issue)
STRYKER 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.