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Official data from INPI

LIGA A BASE DE COBRE E PROCESSO PARA SUA FABRICAÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8601873

Type

Invention Patent

Filing

04/25/1986

Publication

12/30/1986

Progress at the INPI

  1. Filing04/25/86
  2. Publication12/30/86
  3. Examination02/21/89
  4. Allowance04/27/93
  5. Grant02/16/94
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. C. (pessoa física)

US

See this company's full portfolio

Inventors

J. B. (pessoa física)

US

R. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

727.463 · 04/26/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/21/1989

RPI 957

Publicação do pedido de patente

#3.1

12/30/1986

RPI 845

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Carta-patente expirada

#21.1

Patente extinta em 25/04/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

02/16/1994

RPI 1211

Notificação para pagamento de retribuição

#13.1

08/24/1993

RPI 1186

Deferimento

#9.1

04/27/1993

RPI 1169

Exigência - art. 36 da LPI

#6.1

09/29/1992

RPI 1139

Exigência - art. 36 da LPI

#6.1

08/20/1991

RPI 1081

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