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Official data from INPI

RELÉ PRIMÁRIO DE SOBRECORRENTE ESTÁTICO

Em AnáliseInvention Patent
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Application data

Number

PI8503928

Type

Invention Patent

Filing

08/14/1985

Publication

04/07/1987
View on INPI

Progress at the INPI

  1. Filing08/14/85
  2. Publication04/07/87
  3. Examination07/14/87
  4. Allowance06/30/92
  5. Grant04/27/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/14/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cia Masa Alsthom

SP, BR

Inventors

A. P. (pessoa física)

BR

Technical data

IPC Classification

H02H 7/22

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/14/1987

RPI 873

Publicação do pedido de patente

#3.1

04/07/1987

RPI 859

14.4

01/06/1987

RPI 846

14.4

12/30/1986

RPI 845

Pedido de patente depositado

#2.1

10/15/1985

RPI 782

Carta-patente expirada

#21.1

Patente extinta em 14/08/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

11/17/1992

RPI 1146

Deferimento

#9.1

06/30/1992

RPI 1126

Exigência - art. 36 da LPI

#6.1

08/20/1991

RPI 1081

Exigência - art. 36 da LPI

#6.1

02/19/1991

RPI 1055

14.1

09/11/1990

RPI 1032

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