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Official data from INPI

SILENCIADOR DE JATO DE AR COMPRIMIDO

DeferidaInvention Patent

Application data

Number

PI8603474

Type

Invention Patent

Filing

07/23/1986

Publication

03/15/1988

Progress at the INPI

  1. Filing07/23/86
  2. Publication03/15/88
  3. Examination04/25/89
  4. Allowance11/14/89
  5. Grant06/26/90
  6. Terminated10/03/95

The patent was granted on 06/26/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Paulista - COSIPA

SP, BR

See this company's full portfolio

Inventors

A. S. (pessoa física)

BR

S. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

Solicitação de exame técnico

#4.1

04/25/1989

RPI 966

Publicação do pedido de patente

#3.1

03/15/1988

RPI 908

Pedido de patente depositado

#2.1

01/13/1987

RPI 847

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

06/26/1990

RPI 1024

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

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