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Official data from INPI

VÁLVULA GAVETA SIMPLIFICADA

Em AnáliseInvention Patent

Application data

Number

PI8605870

Type

Invention Patent

Filing

12/01/1986

Publication

06/28/1988

Progress at the INPI

  1. Filing12/01/86
  2. Publication06/28/88
  3. Examination11/07/89
  4. Allowance01/02/91
  5. Grant08/27/91
  6. Terminated10/03/95

The patent was granted on 08/27/1991 and later terminated for failure to pay the annuities. The technology is in the public domain 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

Companhia Siderúrgica Paulista - COSIPA

SP, BR

See this company's full portfolio

Inventors

C. N. (pessoa física)

BR

M. C. (pessoa física)

BR

R. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/07/1989

RPI 994

Publicação do pedido de patente

#3.1

06/28/1988

RPI 923

Pedido de patente depositado

#2.1

04/22/1987

RPI 861

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

08/27/1991

RPI 1082

Notificação para pagamento de retribuição

#13.1

04/16/1991

RPI 1063

Deferimento

#9.1

01/02/1991

RPI 1048

Exigência - art. 36 da LPI

#6.1

06/12/1990

RPI 1022

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