Download Docs
Export

APPARATUS FOR ASSESSING A SILICON DIOXIDE CONTENT

10/273,521 | U.S. Patent Application

Interested in this case?

Request a Demo Track this case, and find millions of cases like it, let us show you how.
Location ELECTRONIC
Filed Oct. 18, 2002
Examiner SYLVIA MACARTHUR
Class 156
Art Group 1763
Patent No. 6,749,716
Case Type Utility - 156/345150
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child 011 24 912.5
Last Updated: 4 years, 11 months ago
Date # Transaction