Granted Patent
Utility
US 4,909,794 · App. 07/211,366
Combination retractable needle cannula and cannula lock for a medication carpule
Inventors:
Terry M. Haber, Clark B. Foster
Patented Case
View Patent ↗
Granted: Mar 20, 1990
Filed: Jun 24, 1988
Inventors
Terry M. Haber
Clark B. Foster
Assignee (at issue)
Habley Medical Technology 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.