Patent 5474527 Issued on December 12, 1995. Estimated Expiration Date: July 8, 2014. 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.
A microprocessor controlled transdermal medication patch system wherein said medication is dispensed internally by positive displacement from multiple reservoirs within said patch so as to vary the drug selection, sequence, and concentration and thereby the regimen and release rate. In a preferred embodiment, electric resistance heating elements activate multiple heat-shrink polymer reservoirs to dispence beneficial fluids into a common absorbent layer for transdermal passage.
July 8, 2014. 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.
