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METHOD AND APPARATUS FOR COOLING AND EXPELLING EXHAUST GASES FROM A WATER HEATER

09/757,983 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Jan. 10, 2001
Examiner DANIEL LEON ROBINSON
Class 417
Art Group 3742
Patent No. 6,398,512
Case Type Utility - 417/053000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 09/398,484 Patented
Last Updated: 4 years, 6 months ago
Date # Transaction