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Official data from INPI

ARRANJO DE ANÉIS DE ÓLEO E COMPRESSÃO PARA PISTÃO DE MOTOR DE COMBUSTÃO INTERNA

PublicadaInvention Patent

Application data

Number

PI8801752

Type

Invention Patent

Filing

04/08/1988

Publication

11/07/1989

Progress at the INPI

  1. Filing04/08/88
  2. Publication11/07/89
  3. Examination08/07/90
  4. Allowance01/14/92
  5. Grant04/27/93
  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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cofap - CIA Fabricadora de Peças

SP, BR

See this company's full portfolio

Inventors

J. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/07/1989

RPI 994

Pedido de patente depositado

#2.1

08/23/1988

RPI 931

Carta-patente expirada

#21.1

Patente extinta em 08/04/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

06/02/1992

RPI 1122

Deferimento

#9.1

01/14/1992

RPI 1102

Exigência - art. 36 da LPI

#6.1

08/20/1991

RPI 1081

Solicitação de exame técnico

#4.1

08/07/1990

RPI 1027

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