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Current content: 157 593 259 patent documents

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1 451 440 documents amended

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EP 0138747 B1 19880120 - PARABOLIC STRIP ELEMENT FOR ELONGATED LAMPS

Title (en)

PARABOLIC STRIP ELEMENT FOR ELONGATED LAMPS

Publication

EP 0138747 B1 19880120 (DE)

Application

EP 84730107 A 19841005

Priority

DE 8330299 U 19831018

Abstract (en)

[origin: EP0138747A1] 1. Louvre for elongated light sources, comprising longitudinal webs (1) and V-shaped transverse webs (2), the sides of said transverse webs in cross section, are designed approximately parabolic and, in longitudinal direction, have a concave upper edge (7), characterized in that the transverse webs (2), starting from their centre (A-B), increase towards the lateral longitudinal webs (1) in height and in width.

IPC 1-7

F21V 11/02

IPC 8 full level

F21V 11/02 (2006.01)

CPC (source: EP)

F21V 11/02 (2013.01)

Citation (examination)

EP 0122972 A1 19841031 - BARTENBACH CHRISTIAN
DE 8106507 U1 19810827

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0138747 A1 19850424; EP 0138747 B1 19880120; AT E32135 T1 19880215; DE 3468930 D1 19880225; DE 8330299 U1 19840412

DOCDB simple family (application)

EP 84730107 A 19841005; AT 84730107 T 19841005; DE 3468930 T 19841005; DE 8330299 U 19831018