Granted Patent
Utility
US 4,729,749 · App. 06/939,970
Balloon stem connector
Inventor:
James Milne
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Dec 10, 1986
Inventor
James Milne
Assignee (at issue)
CTI INDUSTRIES CORP.
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.