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ISOLATION OF SUBTERRANEAN ZONES

09/969,922 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Oct. 3, 2001
Examiner FRANK TSAY
Class 166
Art Group 3672
Patent No. 6,634,431
Case Type Utility - 166/387000
Status Patented Case
Parent 09/440,338 Patented
Parent 60/108,558 Expired
Child 10/16,467 Patented
Child 10/619,285 Patented
Child 10/938,788 Patented
Child 10/303,992 Patented
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Last Updated: 6 years, 5 months ago
Date # Transaction