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Official data from INPI

APERFEIÇOAMENTO EM FOLHA DE AÇO REVESTIDA

ConcedidaInvention Patent

Application data

Number

PI8305920

Type

Invention Patent

Filing

10/24/1983

Publication

11/13/1984

Progress at the INPI

  1. Filing10/24/83
  2. Publication11/13/84
  3. Examination06/11/85
  4. Allowance01/03/89
  5. Grant08/29/89
  6. Terminated02/18/92

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Zincroksid S.p.A.

IT

Inventors

M. M. (pessoa física)

IT

R. B. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

47949A/83 · 03/21/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

05/16/1989

RPI 969

Deferimento

#9.1

01/03/1989

RPI 950

Exigência - art. 36 da LPI

#6.1

07/26/1988

RPI 927

Conhecimento de parecer técnico

#7.1

01/07/1986

RPI 794

Solicitação de exame técnico

#4.1

06/11/1985

RPI 764

Publicação do pedido de patente

#3.1

11/13/1984

RPI 734

Pedido de patente depositado

#2.1

01/17/1984

RPI 691

Anuidade - prazo legal encerrado

#18.2

02/18/1992

RPI 1107

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