Patent 5267856 Issued on December 7, 1993. Estimated Expiration Date: September 20, 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.
433/29, Having means to emit radiation or facilitate viewing of the work433/215, METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR REMOVING NATURAL TEETH606/10Systems
A method of ablating or cutting a selected area of a material with a laser, wherein a substance such as water that absorbs the laser radiation is applied to the area in an amount to allow the substance to be absorbed into pores, cracks and other holes in the substance but without pooling on the surface of the material. Application of the substance is done immediately before or during each laser pulse.
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