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Official data from INPI

PROCESSO PARA FABRICAÇÃO DE UMA ESTRUTURA FIBROSA PERMEÁVEL A AR MOLDÁVEL EM FORMA DE FOLHA

PublicadaInvention Patent

Application data

Number

PI8801097

Type

Invention Patent

Filing

03/11/1988

Publication

10/18/1988

Progress at the INPI

  1. Filing03/11/88
  2. Publication10/18/88
  3. Examination02/05/91
  4. Allowance12/10/96
  5. Grant08/26/97
  6. Expired08/26/08

The letters patent expired on 08/26/2008: 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: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Wiggins Teape Group Limited

GB

See this company's full portfolio

Inventors

A. B. (pessoa física)

GB

B. R. (pessoa física)

GB

I. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8705954 · 03/13/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/18/1988

RPI 939

Pedido de patente depositado

#2.1

07/05/1988

RPI 924

Carta-patente expirada

#21.1

Patente extinta em 11/03/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

08/26/1997

RPI 1395

Deferimento

#9.1

12/10/1996

RPI 1358

Exigência - art. 36 da LPI

#6.1

12/05/1995

RPI 1305

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

02/05/1991

RPI 1053

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