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Roll seal control valve

09/542,312 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed April 4, 2000
Examiner JOHN BASTIANELLI
Class 251
Art Group 3754
Patent No. 6,276,658
Case Type Utility - 251/028000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 09/243,730 Patented
Parent 08/886,905 Patented
Parent 08/427,448 Abandoned
Parent 08/103,340 Abandoned
Child 09/872,391 Patented
Child 09/680,647 Patented
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Last Updated: 6 years, 7 months ago
Date # Transaction