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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8008968

Type

Invention Patent

Filing

12/04/1980

Publication

10/20/1981

Progress at the INPI

  1. Filing12/04/80
  2. Publication10/20/81
  3. Examination08/02/83
  4. Allowance04/16/85
  5. Grant10/01/85
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 10/01/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Valmet Oy.

FI

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/01/1985

RPI 780

Deferimento

#9.1

04/16/1985

RPI 756

Exigência - art. 36 da LPI

#6.1

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

Retificação da notificação da fase nacional - PCT

#1.3.1

12/15/1981

RPI 582

Notificação de entrada na fase nacional - PCT

#1.3

10/20/1981

RPI 574

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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