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Official data from INPI

CÉLULA PARA ELETRÓLISE DE ALUMÍNIO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000264

Type

Invention Patent

Filing

01/23/1990

Publication

11/20/1990

Progress at the INPI

  1. Filing01/23/90
  2. Publication11/20/90
  3. Examination03/05/91
  4. Allowance08/18/98
  5. Grant12/29/98
  6. Expired01/02/13

The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. S. (pessoa física)

NO

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Inventors

H. H. (pessoa física)

NO

J. H. (pessoa física)

NO

S. G. (pessoa física)

NO

T. N. (pessoa física)

NO

Technical data

IPC Classification

Priority claims

NO

890289 · 01/23/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/01/2010

01/02/2013

RPI 2191

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

08/18/1998

RPI 1443

Exigência - art. 36 da LPI

#6.1

01/06/1998

RPI 1411

6.2

03/28/1995

RPI 1269

Solicitação de exame técnico

#4.1

03/05/1991

RPI 1057

Publicação do pedido de patente

#3.1

11/20/1990

RPI 1042

Pedido de patente depositado

#2.1

05/01/1990

RPI 1016

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