IP Library › Granted Patent US 4,738,671
Granted Patent Utility
US 4,738,671 · App. 07/072,357

Chest drainage apparatus with check valve

Inventors: Donald P. Elliott, William R. King
Patented Case View Patent ↗
Granted: Apr 19, 1988 Filed: Jul 13, 1987
Inventors
Donald P. Elliott
William R. King
Assignee (at issue)
C. R. Bard, Inc.

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Quick Facts
Patent No.
US 4,738,671
App. No.
07/072,357
Filed
1987-07-13
Granted
1988-04-19
Kind
A