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Official data from INPI

CAMISAS DE BAIXO FERRO PARA ELETRODOS DE PASTA CARBONOSA

Em AnáliseInvention Patent

Application data

Number

PI8700087

Type

Invention Patent

Filing

01/06/1987

Publication

05/26/1987

Progress at the INPI

  1. Filing01/06/87
  2. Publication05/26/87
  3. Examination08/11/87
  4. Allowance10/25/94
  5. Grant07/25/95
  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: 08/11/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. V. (pessoa física)

Inventors

V. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação antecipada

#3.2

05/26/1987

RPI 866

Pedido de patente depositado

#2.1

05/12/1987

RPI 864

Carta-patente expirada

#21.1

Patente extinta em 06/01/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

03/01/1995

RPI 1265

Deferimento

#9.1

10/25/1994

RPI 1247

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