Why did Charles Goodyear, who patented the revolutionary process of vulcanizing rubber in 1844, die in massive debt?

Mr. Charles Goodyear died in 1860, $200,000 in debt.

--Thaddeus

Goodyear was born in New Haven, Connecticut. He entered the hardware business with his father but the venture failed in 1830. Thereafter he turned his talents to the commercial improvement of India rubber, which, until his time, was not used much in industry because of the adhesiveness of the surface and because of its inability to withstand temperature extremes. After numerous experiments, in 1836 Goodyear developed a nitric acid treatment which partially remedied these defects. The famous vulcanizing process, patented in 1844, was to revolutionized the rubber industry, but Goodyear was unable to profit financially from his discovery. His numerous patents were constantly infringed, and although he was able to establish his rights legally, he died a poor man.