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SEGMENTED LIGHT CURTAIN WITH KEYED INTERFACES

09/866,242 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed May 25, 2001
Examiner STEPHEN K YAM
Class 250
Art Group 2878
Patent No. 6,680,469
Case Type Utility - 250/221000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Parent 09/523,406 Patented
Parent 09/626,098 Patented
Child 09/912,169 Patented
Child 10/119,480 Abandoned
Last Updated: 6 years ago
Date # Transaction