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Official data from INPI

APERFEIÇOAMENTO EM COMPRESSOR DE PISTÃO ALTERNATIVO PARA PEQUENAS MÁQUINAS DE REFRIGERAÇÃO E SEU PROCESSO DE MONTAGEM

PublicadaInvention Patent

Application data

Number

PI8707047

Type

Invention Patent

Filing

12/17/1987

Publication

07/18/1989

Progress at the INPI

  1. Filing12/17/87
  2. Publication07/18/89
  3. Examination07/23/91
  4. Allowance07/21/92
  5. Grant05/25/93
  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: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Empresa Brasileira de Compressores S/A - Embraco

SC, BR

See this company's full portfolio

Inventors

L. D. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/18/1989

RPI 978

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Carta-patente expirada

#21.1

Patente extinta em 17/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

12/29/1992

RPI 1152

Deferimento

#9.1

07/21/1992

RPI 1129

Solicitação de exame técnico

#4.1

07/23/1991

RPI 1077

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