IP Library › Granted Patent US 6,802,673
Granted Patent Utility PCT National Stage
US 6,802,673 · Confirmation No. 1108

TUNNEL BORING WITH FOAMED COMPOSITION

Inventor: Peter Ellenberger
Patented Case View Patent ↗
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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
2004-09-02 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-05-03 LET. Miscellaneous Incoming Letter 20 View
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Quick Facts
Patent No.
US 6,802,673
App. No.
10/049,367
Filed
2002-05-03
Effective Filing
2002-02-01
Granted
2004-10-12
Art Unit
3673
PTA
0 days