Inventor · disambiguated record
Frank M. Czumak
Also filed as: CZUMAK FRANK M
13 granted patents·37 citations·filing 1974–1987
87Inventor score
Files withPOLAROID CORP13
Top patents by PatentIndex Score
13 records- 0182US3951530AMethod and apparatus for depositing processing fluid on cassette contained film stripsPOLAROID CORP·Filed 1974·Granted Apr 20, 1976·12 cites·12 claims
- 0257US4568163ACamera backPOLAROID CORP·Filed 1984·Granted Feb 4, 1986·6 cites·11 claims
- 0347US4566770AMount for transparency film framePOLAROID CORP·Filed 1984·Granted Jan 28, 1986·4 cites·10 claims
- 0443US4371249AFilm processing kitPOLAROID CORP·Filed 1982·Granted Feb 1, 1983·8 cites·6 claims
- 0542US4209235AFilm cassette processor having capillary groovesPOLAROID CORP·Filed 1979·Granted Jun 24, 1980·2 cites·9 claims
- 0640US4106042AMultipurpose film cassette having a processor disabling valve retention arrangementPOLAROID CORP·Filed 1977·Granted Aug 8, 1978·2 cites·6 claims
- 0734US4238145AMultipurpose film cassette having one-piece process mode switchPOLAROID CORP·Filed 1979·Granted Dec 9, 1980·1 cites·8 claims
- 0832US4767691APhotographic film assemblagePOLAROID CORP·Filed 1987·Granted Aug 30, 1988·2 cites·11 claims
- 0930US4155634AFilm cassette contained processing fluid applicator having converging fluid channelPOLAROID CORP·Filed 1977·Granted May 22, 1979·0 cites·5 claims
- 1029US4248507AMultipurpose photographic film handling cassette having an improved film processor arrangementPOLAROID CORP·Filed 1979·Granted Feb 3, 1981·0 cites·3 claims
- 1128US4721974AFilm processing kitPOLAROID CORP·Filed 1987·Granted Jan 26, 1988·0 cites·13 claims
- 1228US4080614APhotographic cassette having pressure plate release of a processor disabling valvePOLAROID CORP·Filed 1976·Granted Mar 21, 1978·0 cites·5 claims
- 1325US4630914APhotographic film frame ejectorPOLAROID CORP·Filed 1985·Granted Dec 23, 1986·0 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Frank M. Czumak files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →