How long does incorporation last. Ten years ago I went through with the process of incorporation. Before I could make use of my new company a better job came along. Do I still have a corp.?

Corporate entities are perpetual; they do not expire unless the by-laws of the corporation proclaim that it will when the company is organized. This question would be best referred to an appropriate state agency where the corp was created since corporations are organized under state law (and laws vary from state to state). Most states require that an annual report be filed by the corporation along with a filing fee. Failure to do so could result in your corporate charter being revoked/voided (which effectively ends the legal standing of the company). Revoked corporations can probably pay back fees and file past reports in order to have the charter reinstated. You should contact either the Secretary of State or the Division of Tax/Finance in the state of incorporation to find specific detail on your corp.