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Official data from INPI

COMPOSICAO ACIDA AQUOSA APERFEICOADA E PROCESSO APERFEICOADO PARA FORMAR UM REVESTIMENTO DE CONVERSAO DE FOSFATO DE METAL SOBRE UMA SUPERFICIE DE METAL

ArquivadaInvention Patent
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Application data

Number

PI8206256

Type

Invention Patent

Filing

01/25/1982

Publication

09/20/1983
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Progress at the INPI

  1. Filing01/25/82
  2. Publication09/20/83
  3. Abandoned12/31/85
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PENNWALT CORP [US]

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Inventors

G. K. (pessoa física)

Technical data

IPC Classification

C23F 7/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

06/28/1988

RPI 923

Exigência - art. 36 da LPI

#6.1

12/16/1986

RPI 843

Solicitação de exame técnico

#4.1

12/31/1985

RPI 793

8.1

08/13/1985

RPI 773

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

12/21/1982

RPI 635

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