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Official data from INPI

PROCESSO E INSTALAÇÃO PARA A CRISTALIZAÇÃO DE UMA SUBSTÂNCIA MINERAL

Prazo de SigiloInvention Patent

Application data

Number

PI8903683

Type

Invention Patent

Filing

07/25/1989

Publication

03/13/1990

Progress at the INPI

  1. Filing07/25/89
  2. Publication03/13/90
  3. Examination02/25/92
  4. Allowance10/10/95
  5. Grant07/30/96
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Solvay & Cie

BE

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Inventors

L. N. (pessoa física)

FR

L. D. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

FR

88 10402 · 07/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/17/1989

RPI 991

Carta-patente expirada

#21.1

Patente extinta em 25/07/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

07/30/1996

RPI 1339

Republicação - classificação IPC

#15.11

10/24/1995

RPI 1299

Deferimento

#9.1

10/10/1995

RPI 1297

Exigência - art. 36 da LPI

#6.1

04/11/1995

RPI 1271

Solicitação de exame técnico

#4.1

02/25/1992

RPI 1108

Publicação do pedido de patente

#3.1

03/13/1990

RPI 1009

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