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COPOLYMERS FORMED FORM POLYMERIZATION N, N-DIALLY-N-ALKYL- (SULFOALKY) AMMONIUM BETAINE AND THEIR UTILITY AS CALCIUM SCALE INHIBITORS

08/715,778 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed Sept. 19, 1996
Examiner CHRISTOPHER A HENDERSON JR
Class 210
Art Group 1713
Patent No. 5,788,866
Case Type Utility - 210/701000
Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362
Child 09/78,463 Patented
Last Updated: 4 years, 9 months ago
Date # Transaction