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Official data from INPI

PROCESSO DE AJUSTE DE ELETRODOS EM CÉLULAS ELETROLÍTICAS

PublicadaInvention Patent
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Application data

Number

PI8806985

Type

Invention Patent

Filing

12/29/1988

Publication

09/05/1989
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Progress at the INPI

  1. Filing12/29/88
  2. Publication09/05/89
  3. Examination08/13/91
  4. Allowance11/05/96
  5. Grant08/26/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. S. (pessoa física)

NO

N. A. (pessoa física)

NO

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Inventors

K. N. (pessoa física)

NO

O. S. (pessoa física)

NO

Technical data

IPC Classification

C25C 3/10

Priority claims

NO

875479 · 12/30/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/05/1989

RPI 985

Pedido de patente depositado

#2.1

05/02/1989

RPI 967

Carta-patente expirada

#21.1

Patente extinta em 29/12/2008

05/21/2013

RPI 2211

Concessão da patente

#16.1

08/26/1997

RPI 1395

Deferimento

#9.1

11/05/1996

RPI 1353

Exigência - art. 36 da LPI

#6.1

01/02/1996

RPI 1309

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

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