Granted Patent
Utility
US 4,880,411 · App. 07/176,795
Disposable aspirator
Inventors:
Thomas F. Fangrow, Sam C. Lim
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Apr 1, 1988
Inventors
Thomas F. Fangrow
Sam C. Lim
Assignee (at issue)
Life Support Products, 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.