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Official data from INPI

VÁLVULA DE RESPIRO APRA REDE DE DISTRIBUIÇÃO DE LÍQUIDOS OU GRAXOS

Em AnáliseUtility Model

Application data

Number

MU6401133

Type

Utility Model

Filing

07/16/1984

Publication

02/25/1986

Progress at the INPI

  1. Filing07/16/84
  2. Publication02/25/86
  3. Examination08/05/86
  4. Allowance11/10/87
  5. Grant03/20/90
  6. Expired10/04/94

The letters patent expired on 10/04/1994: 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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. S. (pessoa física)

SP, BR

Inventors

J. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/07/1989

RPI 994

Retificação

#15.6

01/31/1989

RPI 954

Retificação

#15.3

12/13/1988

RPI 947

Deferimento

#9.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

02/25/1986

RPI 801

Pedido de patente depositado

#2.1

09/18/1984

RPI 726

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

Concessão da patente

#16.1

03/20/1990

RPI 1010

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