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Official data from INPI

DIELÉTRICO EM VIDRO SODOCÁLICCO PARA ISOLADOR ELÉTRICO E ISOLADOR RÍGIDO

Em AnáliseInvention Patent

Application data

Number

PI8501888

Type

Invention Patent

Filing

04/19/1985

Publication

12/24/1985

Progress at the INPI

  1. Filing04/19/85
  2. Publication12/24/85
  3. Examination02/24/87
  4. Allowance07/14/92
  5. Grant03/30/93
  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.

Talk to a specialist

Latest action published by the INPI: 02/24/1987. 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

J. P. (pessoa física)

FR

L. P. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

8406301 · 04/20/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/24/1987

RPI 853

Publicação do pedido de patente

#3.1

12/24/1985

RPI 792

Pedido de patente depositado

#2.1

07/02/1985

RPI 767

Carta-patente expirada

#21.1

Patente extinta em 19/04/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

03/30/1993

RPI 1165

Notificação para pagamento de retribuição

#13.1

12/01/1992

RPI 1148

Deferimento

#9.1

07/14/1992

RPI 1128

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