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Official data from INPI

DISPOSIÇÃO CONSTRUTIVA EM FILTRO DE CAVIDADE SINTONIZÁVEL.

ConcedidaUtility Model

Application data

Number

MU6100700

Type

Utility Model

Filing

05/28/1981

Publication

03/16/1982

Progress at the INPI

  1. Filing05/28/81
  2. Publication03/16/82
  3. Examination06/01/82
  4. Allowance04/09/85
  5. Grant10/29/85
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 10/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Electril - Equipamentos e Instalações Elétricas Ltda

Inventors

M. V. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

07/30/1985

RPI 771

Deferimento

#9.1

04/09/1985

RPI 755

Exigência - art. 36 da LPI

#6.1

09/04/1984

RPI 724

Solicitação de exame técnico

#4.1

06/01/1982

RPI 606

Publicação antecipada

#3.2

03/16/1982

RPI 595

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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