IP Library › Granted Patent US 6,820,355
Granted Patent Utility PCT National Stage
US 6,820,355 · Confirmation No. 1155

HYDRAULIC CONTROL CIRCUIT OF BOOM CYLINDER IN WORK MACHINE

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2004-03-25 CTNF Non-Final Rejection 6 View
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2002-11-19 SPEC Specification 32 View
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Quick Facts
Patent No.
US 6,820,355
App. No.
10/276,795
Filed
2002-11-19
Granted
2004-11-23
Pub. No.
US20040031173A1
Art Unit
3671
PTA
0 days