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Official data from INPI

PROCESSO PARA A FABRICACAO DE REVESTIMENTOS DE FRICCAO E REVESTIMENTOS DE FRICCAO ASSIM OBTIDOS

ConcedidaInvention Patent

Application data

Number

PI8108027

Type

Invention Patent

Filing

12/11/1980

Publication

09/21/1982

Progress at the INPI

  1. Filing12/11/80
  2. Publication09/21/82
  3. Examination04/19/83
  4. Allowance06/14/88
  5. Grant12/27/88
  6. Terminated11/08/94

The patent was granted on 12/27/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

REX PATENT [DE]

Inventors

F. H. (pessoa física)

W. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

12/08/1987

RPI 894

Conhecimento de parecer técnico

#7.1

09/18/1984

RPI 726

Exigência - art. 36 da LPI

#6.1

10/11/1983

RPI 677

Solicitação de exame técnico

#4.1

04/19/1983

RPI 652

Publicação do pedido de patente

#3.1

09/21/1982

RPI 622

Pedido de patente depositado

#2.1

02/02/1982

RPI 589

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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