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Official data from INPI

APARELHO PARA TELEFONISTA

ConcedidaUtility Model

Application data

Number

MU6201274

Type

Utility Model

Filing

09/17/1982

Publication

01/04/1983

Progress at the INPI

  1. Filing09/17/82
  2. Publication01/04/83
  3. Examination06/21/83
  4. Allowance11/12/85
  5. Grant10/29/86
  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: 10/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBCT ELETRONICA LTD [BR]

Inventors

N. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1986

RPI 836

110

06/17/1986

RPI 817

Recurso

#12.1

03/11/1986

RPI 803

Deferimento

#9.1

11/12/1985

RPI 786

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Pedido de certificado de adição de invenção

#5.1

11/01/1983

RPI 680

Solicitação de exame técnico

#4.1

06/21/1983

RPI 661

Publicação antecipada

#3.2

01/04/1983

RPI 637

Pedido de patente depositado

#2.1

11/09/1982

RPI 629

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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