1839 Charles Goodyear innovates the vulcanization of rubber. Soon after, he secures patents for condoms, douching syringes and cervical caps, but is unable to manufacture them, defend all his patents, or even make tires in his lifetime.
June 1844 Charles Goodyear received a patent for a process to strengthen rubber.
Charles David blue suede heeled loafers size 6.5
Charles David blue suede heeled loafers size 6.5 In excellent condition Charles by Charles David blue suede heeled loafers size 6.5. Worn very little. Added Goodyear sole for traction. Menswear inspired block heel loafer. 3” heel. Pointed toe and vamp. Block heel is sculptural and has a very unique look. No damage or defects to speak of. Fun and different shoe that would work for office or play. Perfect holiday blue. Charles David Shoes Heels