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Official data from INPI

APERFEIÇOAMENTO EM ANEL DE SUSTENTAÇÃO DE ROLO DE ARAME FARPADO E DISPOSITIVO PARA DESENROLAR ROLO DE ARAME FARPADO

Prazo de SigiloInvention Patent

Application data

Number

PI8803279

Type

Invention Patent

Filing

07/01/1988

Publication

03/06/1990

Progress at the INPI

  1. Filing07/01/88
  2. Publication03/06/90
  3. Examination03/24/92
  4. Allowance03/08/94
  5. Grant07/26/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 12/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mendes Júnior Siderurgia S.A

MG, BR

S. A. (pessoa física)

MG, BR

See this company's full portfolio

Inventors

E. P. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

12/06/1988

RPI 946

Carta-patente expirada

#21.1

Patente extinta em 01/07/2003

09/02/2008

RPI 1965

14.4

12/06/1994

RPI 1253

Concessão da patente

#16.1

07/26/1994

RPI 1234

Deferimento

#9.1

03/08/1994

RPI 1214

Solicitação de exame técnico

#4.1

03/24/1992

RPI 1112

Publicação do pedido de patente

#3.1

03/06/1990

RPI 1008

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