Patent · US Expired

Photographic film unit of integral structure

US4264718A · kind A · utility

2Cited by

3References

13Claims

0Family size

Assignee

AGFA-Gervaert AG · DE

Inventors

Hermann Luhrig · Leverkusen, DE
Guido Kovacic · Unkel, DE
Walter Tabel · Cologne, DE
Horst-Peter Muller · Cologne, DE

Key dates

Filing date	Aug 3, 1979
Grant date	Apr 28, 1981
Priority date	—
Expiry date	Aug 3, 1999

Classification

Technology area (CPC G)Physics
CPC primaryG03C8/46
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a photographic film unit with integral structure consisting of an image sheet and a cover sheet which is substantially in register with the image sheet and firmly attached to it, whereby the attachment between the sheets is produced by a combination of individual masking strips and lateral spacer strips and said combination of multi-part mask is composed of a masking folding sheet associated with the container for photographic developer material and another associated with the trap and a separate lateral masking strip for each side.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.