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Official data from INPI

PROCESSO E EQUIPAMENTO PARA A INTUMESCÊNCIA CONTÍNUA DE MATÉRIAS-PRIMAS AMILÁCEAS

Em AnáliseInvention Patent

Application data

Number

PI8706553

Type

Invention Patent

Filing

12/04/1987

Publication

07/12/1988

Progress at the INPI

  1. Filing12/04/87
  2. Publication07/12/88
  3. Examination10/11/88
  4. Allowance12/12/95
  5. Grant08/27/96
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Westfalia Separator AG

DE

See this company's full portfolio

Inventors

G. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 41 732.7 · 12/06/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/11/1988

RPI 938

Publicação do pedido de patente

#3.1

07/12/1988

RPI 925

Pedido de patente depositado

#2.1

04/05/1988

RPI 911

Carta-patente expirada

#21.1

Patente extinta em 04/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

08/27/1996

RPI 1343

Deferimento

#9.1

12/12/1995

RPI 1306

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

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