IP Library › Patent Application 10089655
Patent Application Utility PCT National Stage
App. No. 10/089,655 · Confirmation No. 3233

METHOD AND APPARATUS FOR BLOCKING PIPES

Inventor: Andrew Welfare
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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2002-07-08 LET. Miscellaneous Incoming Letter 28 View
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Quick Facts
App. No.
10/089,655
Filed
2002-07-08
Effective Filing
2002-04-02
Granted
2003-07-08
Art Unit
3752
PTA
0 days