IP Library › Granted Patent US 6,444,720
Granted Patent Utility PCT National Stage
US 6,444,720 · Confirmation No. 9912

OPEN-CELL RIGID POLYURETHANE FOAMS

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2006-11-21 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2006-06-07 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2001-10-18 ABST Abstract 1 View
2001-10-18 LET. Miscellaneous Incoming Letter 27 View
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Quick Facts
Patent No.
US 6,444,720
App. No.
09/959,253
Filed
2001-10-18
Granted
2002-09-03
Art Unit
1711
PTA
-5 days