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Official data from INPI

PROCESSO PARA APERFEIÇOAR A FILTRABILIDADE DE UM CALDO MICROBIAL

Em AnáliseInvention Patent

Application data

Number

PI8506226

Type

Invention Patent

Filing

12/12/1985

Publication

08/26/1986

Progress at the INPI

  1. Filing12/12/85
  2. Publication08/26/86
  3. Examination07/26/88
  4. Allowance01/24/95
  5. Grant06/27/95
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

A. R. (pessoa física)

GB

J. D. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8431653 · 12/14/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/26/1988

RPI 927

Publicação do pedido de patente

#3.1

08/26/1986

RPI 827

Pedido de patente depositado

#2.1

02/25/1986

RPI 801

Carta-patente expirada

#21.1

Patente extinta em 12/12/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

06/27/1995

RPI 1282

Deferimento

#9.1

01/24/1995

RPI 1260

Exigência - art. 36 da LPI

#6.1

09/13/1994

RPI 1241

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