Granted Patent
Utility
US 5,215,522 · App. 07/682,165
Single use medical aspirating device and method
Inventors:
Larry E. Page, Darrel Palmer
Patented Case
View Patent ↗
Granted: Jun 1, 1993
Filed: Apr 5, 1991
Inventors
Larry E. Page
Darrel Palmer
Assignee (at issue)
Ballard Medical Products
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.