Granted Patent
Utility
US 4,257,109 · App. 06/065,987
Bubble nucleator
Inventor:
Sidney J. Schwartz
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Aug 13, 1979
Inventor
Sidney J. Schwartz
Assignee (at issue)
Burroughs, 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.