▁months ▁later ▁the ▁firm ▁sent ▁one ▁of ▁their ▁junior ▁associ ates , ▁Lewis ▁L . ▁Stra uss ▁to ▁the ▁Mann es ▁a partment ▁to ▁view ▁the ▁color ▁process . ▁The ▁final ▁results ▁were ▁impress ive ▁enough ▁for ▁Ku hn ▁Lo eb ▁to ▁invest ▁in ▁the ▁process . ▁ ▁Development ▁of ▁color ▁process ▁With ▁financial ▁backing , ▁God ow sky ▁and ▁Mann es ▁built ▁a ▁dedicated ▁labor atory ▁and ▁in ▁ 1 9 2 4 ▁took ▁out ▁additional ▁pat ents ▁on ▁their ▁work . ▁In ▁ 1 9 3 0 ▁East man ▁K od ak ▁was ▁so ▁im pressed ▁with ▁the ▁results ▁that ▁they ▁contract ed ▁them ▁to ▁move ▁to ▁Ro chester ▁and ▁take ▁advantage ▁of ▁K od ak ' s ▁research ▁facilities . ▁ ▁By ▁ 1 9 3 5 , ▁God ow sky ▁and ▁Mann es ▁and ▁the ▁K od ak ▁research ▁staff ▁had ▁developed ▁a ▁market able ▁subtract ive ▁color ▁film ▁for ▁home ▁mov ies . ▁K od ach rome ▁film ▁was ▁co ated ▁with ▁three ▁layers ▁of ▁ordinary ▁black - and - white ▁silver ▁hal ide ▁gel atin ▁em ulsion , ▁but ▁each ▁layer ▁was ▁made ▁sensitive ▁to ▁only ▁one - third ▁of ▁the ▁spectrum ▁of ▁colors — in ▁ess ence , ▁to ▁red , ▁green ▁or ▁blue . ▁Special ▁processing ▁chem istry ▁and ▁procedures ▁caused ▁complement ary ▁cy an , ▁mag enta ▁or ▁yellow ▁d ye ▁images ▁to ▁be ▁generated ▁in ▁these ▁layers ▁as ▁the ▁black - and - white ▁silver ▁images ▁were ▁developed . ▁After ▁they ▁had ▁served