← Back to Patent Explorer
US2643950A Expired / Lapsed US ⏱️ 0.0 years remaining

Process of transferring an image-bearing gelatin layer to another film base

Assignee: EIDP Inc
•
Filing: 1950-01-18
•
Granted: 1953-06-30
•
Expires: 1970-01-18
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Umberger Jacob Quentin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 13:58
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/20

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 120 words
A PROCESS WHICH COMPRISES EXPOSING TO A MULTICOLOR SCENE A PERFORATED MOTION PICTURE STRIPPING FILM HAVING AN OUTER LIGHT-SENSITIVE GELATIN SILVER HALIDE EMULSION LAYER RELEASABLY JOINED BY MEANS OF A WATER-SOLUBLE ADHESIVE TO A LAYER ON THE FILM, GIVING THE FILM A FLASH EXPOSURE TO LIGHT ALONG THE PERFORATED EDGES OF THE FILM, DEVELOPING, FIXING, WASHING AND DRYING SAID FILM, SOAKING THE PROCESSED FILM IN AN AQUEOUS BATH, PRESSING THE WEB SURFACE OF SAID OUTER LAYER INTO REGISTRATION CONTACT WITH THE GELATIN SURFACE OF A SIMILARLY PERFORATED BLANK FILM, HEATING THE COMBINED FILMS WITH INFRARED RAYS TO BLEND THE ADHERENT GELATIN SURFACES, AND STRIPPING THE GELATIN BLANK FILM WITH ITS ADHERENT SILVER-IMAGE-BEARING LAYER FROM THE REMAINDER OF THE STRIPPING FILM.

References Cited (Backward Citations)

US2038118A Cited
US2248213A Cited
US2266435A Cited
US2415442A Cited
GB574138A Cited
US2417060A Cited
US2462503A Cited
US2459279A Cited
US2572967A Cited
US2492952A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-06-29 1956-12-29 1957-06-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-06-29 1960-12-29 1961-06-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-06-29 1964-12-29 1965-06-30 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag