Granted Patent
Utility
US 4,568,367 · App. 06/441,464
Blood defoamer with improved liquid seal
Inventors:
Robert F. Gremel, Kenneth M. Galt
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Nov 15, 1982
Inventors
Robert F. Gremel
Kenneth M. Galt
Assignee (at issue)
Shiley Incorporated
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.