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Official data from INPI

FILAMENTOS, FIOS E FIBRAS SINTÉTICOS À BASE DE POLIAMIDAS-IMIDAS RESISTENTES AO CALOR E PROCESSO PARA OBTENÇÃO DE TAIS FILAMENTOS FIOS E FIBRAS

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904858

Type

Invention Patent

Filing

09/21/1989

Publication

05/08/1990

Progress at the INPI

  1. Filing09/21/89
  2. Publication05/08/90
  3. Examination11/03/92
  4. Allowance12/23/97
  5. Grant08/25/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. F. (pessoa física)

FR

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Inventors

B. T. (pessoa física)

FR

P. B. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

88 12560 · 09/21/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/09/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

12/23/1997

RPI 1409

Exigência - art. 36 da LPI

#6.1

02/04/1997

RPI 1366

Exigência - art. 36 da LPI

#6.1

11/21/1995

RPI 1303

Exigência - art. 36 da LPI

#6.1

06/27/1995

RPI 1282

Solicitação de exame técnico

#4.1

11/03/1992

RPI 1144

Publicação do pedido de patente

#3.1

05/08/1990

RPI 1017

Pedido de patente depositado

#2.1

03/06/1990

RPI 1008

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