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Official data from INPI

PROCESSO E COMPOSIÇÕES PARA A PASSIVAÇÃO DE SUPERFÍCIES DE FERRO E DE AÇO.

ConcedidaInvention Patent

Application data

Number

PI8108760

Type

Invention Patent

Filing

08/19/1981

Publication

07/06/1982

Progress at the INPI

  1. Filing08/19/81
  2. Publication07/06/82
  3. Examination02/28/84
  4. Allowance02/09/88
  5. Grant07/26/88
  6. Terminated11/08/94

The patent was granted on 07/26/1988 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

D. H. (pessoa física)

G. D. (pessoa física)

G. D. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

DE

P 30 32 226.0 · 08/27/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Deferimento

#9.1

02/09/1988

RPI 903

Exigência - art. 36 da LPI

#6.1

09/08/1987

RPI 881

Republicação - classificação IPC

#15.11

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

10/16/1984

RPI 730

4.1.1

06/12/1984

RPI 712

Solicitação de exame técnico

#4.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

02/28/1984

RPI 697

Notificação de entrada na fase nacional - PCT

#1.3

07/06/1982

RPI 611

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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