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Official data from INPI

VALVULA DE SAIDA COM TAMPA

Em AnáliseUtility Model

Application data

Number

MU6201642

Type

Utility Model

Filing

12/02/1982

Publication

07/10/1984

Progress at the INPI

  1. Filing12/02/82
  2. Publication07/10/84
  3. Examination08/05/86
  4. Allowance07/14/87
  5. Grant01/26/88
  6. Expired11/15/94

The letters patent expired on 11/15/1994: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NELSON SETSUO OYAMADA [BR]

Inventors

O. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

06/28/1988

RPI 923

Concessão da patente

#16.1

01/26/1988

RPI 901

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Deferimento

#9.1

07/14/1987

RPI 873

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

07/10/1984

RPI 716

Pedido de patente depositado

#2.1

01/25/1983

RPI 640

Carta-patente expirada

#21.1

11/15/1994

RPI 1250

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