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Official data from INPI

ISOLADOR ELÉTRICO DE SUSPENSÃO

Em AnáliseInvention Patent

Application data

Number

PI8601626

Type

Invention Patent

Filing

04/10/1986

Publication

11/03/1987

Progress at the INPI

  1. Filing04/10/86
  2. Publication11/03/87
  3. Examination02/21/89
  4. Allowance09/03/91
  5. Grant06/30/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ceraver

FR

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Inventors

D. D. (pessoa física)

FR

S. T. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

85 16 919 · 11/15/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/21/1989

RPI 957

Publicação do pedido de patente

#3.1

11/03/1987

RPI 889

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Carta-patente expirada

#21.1

Patente extinta em 10/04/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

06/30/1992

RPI 1126

Notificação para pagamento de retribuição

#13.1

01/07/1992

RPI 1101

Deferimento

#9.1

09/03/1991

RPI 1083

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