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Official data from INPI

APERFEICOAMENTOS EM COMUTADOR DE POLARIDADE EM LINHAS TELEFONICAS

Em AnáliseInvention Patent

Application data

Number

PI8105786

Type

Invention Patent

Filing

09/10/1981

Publication

04/19/1983

Progress at the INPI

  1. Filing09/10/81
  2. Publication04/19/83
  3. Examination08/16/83
  4. Refused06/09/87
  5. Grant
  6. In force

The application was refused on 06/09/1987 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/09/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ericsson do Brasil Comércio e Indústria S/A

SP, BR

See this company's full portfolio

Inventors

F. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

06/09/1987

RPI 868

Deferimento

#9.1

07/09/1985

RPI 768

Petição de recurso

#12.2

11/27/1984

RPI 736

Indeferimento

#9.2

08/14/1984

RPI 721

Solicitação de exame técnico

#4.1

08/16/1983

RPI 669

Publicação do pedido de patente

#3.1

04/19/1983

RPI 652

Pedido de patente depositado

#2.1

10/27/1981

RPI 575

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