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Official data from INPI

DISPOSITIVO DE SUPORTE OU SUSTENTAÇÃO DE ELEMENTOS DE AQUECIMENTO ELÉTRICO EM FORNOS E EM EQUIPAMENTOS, ISOLADOS COM FIBRA CERÂMICA

ConcedidaInvention Patent

Application data

Number

PI8007655

Type

Invention Patent

Filing

11/24/1980

Publication

07/27/1982

Progress at the INPI

  1. Filing11/24/80
  2. Publication07/27/82
  3. Examination10/13/82
  4. Allowance12/20/83
  5. Grant06/26/84
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Carborundum do Brasil Ltda.

SP, BR

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Inventors

C. C. (pessoa física)

P. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Solicitação de exame técnico

#4.1

10/13/1982

RPI 625

Publicação do pedido de patente

#3.1

07/27/1982

RPI 614

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

20.4

08/04/1992

RPI 1131

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