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Official data from INPI

VÁLVULA.

ConcedidaInvention Patent

Application data

Number

PI8201482

Type

Invention Patent

Filing

03/18/1982

Publication

11/01/1983

Progress at the INPI

  1. Filing03/18/82
  2. Publication11/01/83
  3. Examination06/12/84
  4. Allowance01/07/86
  5. Grant09/30/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. J. (pessoa física)

SP, BR

Inventors

A. J. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/30/1986

RPI 832

Notificação para pagamento de retribuição

#13.1

05/06/1986

RPI 811

Deferimento

#9.1

01/07/1986

RPI 794

Exigência - art. 36 da LPI

#6.1

01/08/1985

RPI 742

Solicitação de exame técnico

#4.1

06/12/1984

RPI 712

Publicação do pedido de patente

#3.1

11/01/1983

RPI 680

Pedido de patente depositado

#2.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

Patente extinta em 18/03/97

07/01/2008

RPI 1956

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