Method employing chemical markers and kit for verifying the source and completeness of urine samples for testing for the presence of drugs of abuse
Patent 5179027 Issued on January 12, 1993. Estimated Expiration Date: 
January 10, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 10, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesTest means and method for creatinine determination Method for prevention of specimen tampering in substance abuse testing and test area relating thereto Patent #: 5039616 InventorApplicationNo. 639913 filed on 01/10/1991US Classes:436/56, TRACERS OR TAGS422/61, Test package or kit436/183, MISCELLANEOUS436/901, DRUGS OF ABUSE (E.G., NARCOTICS, AMPHETAMINE, ETC.)600/300DIAGNOSTIC TESTINGExaminersPrimary: Hill, Robert J. Jr.Attorney, Agent or FirmInternational ClassG01N 037/00AbstractThe present invention relates to a method and a kit for verifying the source and completeness of urine samples when collected for testing for the presence of drugs of abuse. The method involves observing an individual consume (1) a quantity of a first chemical marker reagent capable of confirming upon chemical analysis the completeness of the urine sample and (2) a quantity of a second chemical marker reagent capable of confirming upon analysis the accuracy of the source of the urine sample. The urine subsequently collected is analyzed by known analytical techniques. |
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