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Official data from INPI

ANEL DE LAMINAÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906357

Type

Invention Patent

Filing

12/08/1989

Publication

08/21/1990

Progress at the INPI

  1. Filing12/08/89
  2. Publication08/21/90
  3. Examination12/26/90
  4. Allowance04/16/96
  5. Grant03/25/97
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sandvik AB

SE

See this company's full portfolio

Inventors

G. S. (pessoa física)

SE

J. C. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8804503-4 · 12/13/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/12/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

04/16/1996

RPI 1324

Exigência - art. 36 da LPI

#6.1

10/10/1995

RPI 1297

Solicitação de exame técnico

#4.1

12/26/1990

RPI 1047

Publicação do pedido de patente

#3.1

08/21/1990

RPI 1029

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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