FC

Frank M. Czumak

PO Polaroid: 9 patents #69 of 898Top 8%
📍 Derry, NH: #30 of 295 inventorsTop 15%
🗺 New Hampshire: #1,680 of 12,181 inventorsTop 15%
Overall (All Time): #592,960 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
4767691 Photographic film assemblage Michael Berger, Robert Cavallaro 1988-08-30
4721974 Film processing kit 1988-01-26
4630914 Photographic film frame ejector Donald J. Sulesky 1986-12-23
4568163 Camera back Joseph A. Stella, Joseph H. Wright 1986-02-04
4566770 Mount for transparency film frame Joseph H. Wright 1986-01-28
4371249 Film processing kit Peter K. Fichter 1983-02-01
4248507 Multipurpose photographic film handling cassette having an improved film processor arrangement 1981-02-03
4238145 Multipurpose film cassette having one-piece process mode switch 1980-12-09
4209235 Film cassette processor having capillary grooves 1980-06-24