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Official data from INPI

VALVULA DE DESCARGA RAPIDA,PARA EMPREGO EM ESTIMULADORES DE CIRCULACAO DE SANGUE

ConcedidaUtility Model

Application data

Number

MU6401363

Type

Utility Model

Filing

08/18/1983

Publication

10/22/1985

Progress at the INPI

  1. Filing08/18/83
  2. Publication10/22/85
  3. Examination05/13/86
  4. Allowance06/23/87
  5. Grant01/26/88
  6. Expired11/22/94

The letters patent expired on 11/22/1994: 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: 01/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KAWAEI CO LTD [JP]

Inventors

K. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/26/1988

RPI 901

Notificação para pagamento de retribuição

#13.1

10/20/1987

RPI 887

Deferimento

#9.1

06/23/1987

RPI 870

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Publicação do pedido de patente

#3.1

10/22/1985

RPI 783

Pedido de patente depositado

#2.1

10/23/1984

RPI 731

Carta-patente expirada

#21.1

11/22/1994

RPI 1251

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