IP Library › Granted Patent US 6,749,815
Granted Patent Utility
US 6,749,815 · Confirmation No. 8861

SWITCHING VALVE SEAL

Inventor: James T. Cash
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Quick Facts
Patent No.
US 6,749,815
App. No.
09/849,785
Filed
2001-05-04
Granted
2004-06-15
Pub. No.
US20020164276A1
Art Unit
1764
PTA
-128 days