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Official data from INPI

PROCESSO PARA RECUPERAR METAIS E LIGAS METÁLICAS E INSTALAÇÃO

PublicadaInvention Patent

Application data

Number

PI8705781

Type

Invention Patent

Filing

10/29/1987

Publication

05/31/1988

Progress at the INPI

  1. Filing10/29/87
  2. Publication05/31/88
  3. Examination10/23/90
  4. Allowance09/28/93
  5. Grant05/31/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deutsche Voest-Alpine Industrieanlagenbau GmbH

DE

See this company's full portfolio

Inventors

D. K. (pessoa física)

AT

E. O. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

AT

A 2886/86 · 10/30/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/31/1988

RPI 919

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 29/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

09/28/1993

RPI 1191

Exigência - art. 36 da LPI

#6.1

01/26/1993

RPI 1156

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

14.4

08/28/1990

RPI 1030

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