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Official data from INPI

DISPOSICAO DE CIRCUITO PARA A ATENUACAO DE OSCILACOES NA LIGACAO E NO DESLIGAMENTO EM UMA INSTALACAO DE COMUTACAO

Em AnáliseInvention Patent

Application data

Number

PI8501868

Type

Invention Patent

Filing

04/19/1984

Publication

12/17/1985

Progress at the INPI

  1. Filing04/19/84
  2. Publication12/17/85
  3. Examination08/25/87
  4. Allowance05/29/90
  5. Abandoned
  6. In force

The application was allowed on 05/29/1990 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TRANSFORMATOREN UNION AG [DE]

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Inventors

M. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.1

09/06/1988

RPI 933

Solicitação de exame técnico

#4.1

08/25/1987

RPI 879

Publicação do pedido de patente

#3.1

12/17/1985

RPI 791

Pedido de patente depositado

#2.1

07/02/1985

RPI 767

Arquivamento - Art. 38 §2° da LPI

#11.4

09/10/1991

RPI 1084

Notificação para pagamento de retribuição

#13.1

09/04/1990

RPI 1031

Deferimento

#9.1

05/29/1990

RPI 1020

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