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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE CLORETO DE MAGNÉSIO

Em AnáliseInvention Patent

Application data

Number

PI8803519

Type

Invention Patent

Filing

07/13/1988

Publication

02/08/1989

Progress at the INPI

  1. Filing07/13/88
  2. Publication02/08/89
  3. Examination10/03/89
  4. Allowance03/14/95
  5. Grant09/26/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. A. (pessoa física)

NO

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Inventors

G. M. (pessoa física)

NO

H. B. (pessoa física)

NO

K. T. (pessoa física)

NO

Technical data

IPC Classification

Priority claims

NO

872945 · 07/15/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/03/1989

RPI 989

Publicação do pedido de patente

#3.1

02/08/1989

RPI 955

Pedido de patente depositado

#2.1

12/20/1988

RPI 948

Carta-patente expirada

#21.1

Patente extinta em 13/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

09/26/1995

RPI 1295

Deferimento

#9.1

03/14/1995

RPI 1267

Exigência - art. 36 da LPI

#6.1

11/08/1994

RPI 1249

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