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Reexamination of Patent No. 5,590,642, CONTROL METHODS AND APPARATUS FOR GAS-FIRED COMBUSTORS

90/9,407 | U.S. Patent Application

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Location ELECTRONIC
Filed Feb. 18, 2009
Examiner PETER C ENGLISH
Class 126
Art Group 3993
Case Type Re-Examination - 126/11600A
Status Reexamination Certificate Issued
Original Case 08/378,516 Patented
Last Updated: 3 years, 3 months ago
Date # Transaction