Ir para o conteúdo
onsuggest
Entrar
Artigo en

The Preacher Who Patented Flexible Film in 1898 and Died Before Kodak Paid $5 Million for It

Fonte: Fstoppers ·

Hannibal Goodwin's application for a photographic pellicle reached the Patent Office on May 2, 1887, and stayed there for eleven years and four months while a succession of five examiners rejected it. George Eastman's chemist filed his own flexible film application on April 9, 1889, and had a granted patent eight months later. By the time Goodwin's US Patent 610,861 issued on September 13, 1898, Kodak had been selling transparent roll film to the public for nine years. [ Read More ]

Atalhos de teclado

Descoberta anterior
←P
Próxima descoberta
→N
Gosto
L
Não é para mim
X
Guardar
S
Mostrar esta ajuda
?
Fechar
Esc

Os atalhos funcionam na página de descobertas.