IP Library Granted Patent US 6,723,163
Granted Patent Utility PCT National Stage
US 6,723,163 · Confirmation No. 7380

CONCRETE ADMIXTURE

Inventor: Thomas Hofmann
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2005-09-12 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2004-02-20 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-02-20 LET. Miscellaneous Incoming Letter 1 View
2004-02-20 PA.. Power of Attorney 1 View
2004-02-20 C.AD Change of Address 1 View
2001-09-25 LET. Miscellaneous Incoming Letter 17 View
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Quick Facts
Patent No.
US 6,723,163
App. No.
09/763,482
Filed
2001-09-25
Effective Filing
2001-02-21
Granted
2004-04-20
Art Unit
1755
PTA
-31 days