IP Library › Granted Patent US 5,188,558
Granted Patent Utility
US 5,188,558 · App. 07/787,772

Self-sealing refillable plastic balloon valve

Inventors: Leslie W. Barton, Andrew J. Barton
Patented Case View Patent ↗
Granted: Feb 23, 1993 Filed: Nov 6, 1991
Inventors
Leslie W. Barton
Andrew J. Barton

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Quick Facts
Patent No.
US 5,188,558
App. No.
07/787,772
Filed
1991-11-06
Granted
1993-02-23
Kind
A