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Official data from INPI

REVESTIMENTO REFRATARIO RESISTENTE A CORROSAO

Em ExigênciaInvention Patent

Application data

Number

PI8504986

Type

Invention Patent

Filing

10/08/1985

Publication

07/29/1986

Progress at the INPI

  1. Filing10/08/85
  2. Publication07/29/86
  3. Abandoned09/20/88
  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.

Talk to a specialist

Latest action published by the INPI: 06/13/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

C. J. (pessoa física)

H. W. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

06/13/1989

RPI 973

Solicitação de exame técnico

#4.1

09/20/1988

RPI 935

Publicação do pedido de patente

#3.1

07/29/1986

RPI 823

Pedido de patente depositado

#2.1

12/17/1985

RPI 791

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C04B 35/68; C04B 35/44; C04B 35/66.

03/27/2018

RPI 2464

Arquivamento - Art. 36 §1° da LPI

#11.2

05/11/1993

RPI 1171

Exigência - art. 36 da LPI

#6.1

07/14/1992

RPI 1128

Exigência - art. 36 da LPI

#6.1

12/10/1991

RPI 1097

Conhecimento de parecer técnico

#7.1

10/30/1990

RPI 1039

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