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Official data from INPI

COMPOSICAO DE REVESTIMENTO, PROCESSO E SUBSTRATO METALICO REVESTIDO

ConcedidaInvention Patent

Application data

Number

PI8101523

Type

Invention Patent

Filing

03/20/1980

Publication

-

Progress at the INPI

  1. Filing03/20/80
  2. Publication
  3. Examination09/13/83
  4. Allowance11/01/88
  5. Grant04/25/89
  6. Terminated02/04/92

The patent was granted on 04/25/1989 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

V. O. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/25/1989

RPI 966

Deferimento (variante)

#9.1.2

01/17/1989

RPI 952

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

11/01/1988

RPI 941

Deferimento

#9.1

09/06/1988

RPI 933

Exigência - art. 36 da LPI

#6.1

02/17/1988

RPI 904

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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