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Official data from INPI

APARELHO PORTÁTIL, PARA AFERIR CONTROLADORES DE TEMPERATURA POR BANHO DE ÓLEO COM PROTEÇÃO CONTRA ESCOAMENTO ACIDENTAL

PublicadaInvention Patent

Application data

Number

PI8704747

Type

Invention Patent

Filing

09/14/1987

Publication

03/21/1989

Progress at the INPI

  1. Filing09/14/87
  2. Publication03/21/89
  3. Examination08/13/91
  4. Allowance05/17/94
  5. Grant12/27/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Furnas Centrais Elétricas S.A

RJ, BR

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Inventors

V. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/21/1989

RPI 961

Pedido de patente depositado

#2.1

11/24/1987

RPI 892

Carta-patente expirada

#21.1

Patente extinta em 14/09/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

09/27/1994

RPI 1243

Deferimento

#9.1

05/17/1994

RPI 1224

Exigência - art. 36 da LPI

#6.1

11/23/1993

RPI 1199

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

Solicitação de exame não realizada

#4.2

04/16/1991

RPI 1063

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