Patent · US Expired

Light-tightly packaged roll of light sensitive material

US4733777A · kind A · utility

31Cited by

7References

6Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Danny Van Geyte · Schilde, BE
Dirk Peeters · Kontich, BE

Key dates

Filing date	Jan 13, 1987
Grant date	Mar 29, 1988
Priority date	—
Expiry date	Jan 13, 2007

Classification

Technology area (CPC G)Physics
CPC primaryG03B27/588
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A light-tightly packaged roll of light-sensitive material, which comprises an annular end cover for each end face of the roll and a circumferential cover wound around the periphery of the roll and having lateral extensions sealed with their inner surface to the inner surface of radially outwardly projecting margins of the end covers.

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