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Official data from INPI

PROCESSO PARA A FABRICAÇÃO DE PRODUTOS DE AÇO LAMINADO

Arquivada/ExtintaInvention PatentPCT · EP1987000537

Application data

Number

PI8707822

Type

Invention Patent

Filing

09/18/1987

Publication

08/15/1989

PCT

EP1987000537

Progress at the INPI

  1. Filing09/18/87
  2. Publication08/15/89
  3. Examination02/06/90
  4. Allowance03/01/95
  5. Grant09/26/95
  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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. A. (pessoa física)

DE

Inventors

D. R. (pessoa física)

DE

E. R. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 31 928.7 · 09/19/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

08/15/1989

RPI 982

Carta-patente expirada

#21.1

Patente extinta em 18/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/26/1995

RPI 1295

Notificação para pagamento de retribuição

#13.1

07/18/1995

RPI 1285

Deferimento

#9.1

03/01/1995

RPI 1265

Exigência - art. 36 da LPI

#6.1

08/30/1994

RPI 1239

Solicitação de exame técnico

#4.1

02/06/1990

RPI 1005

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