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Official data from INPI

SILO METÁLICO PARA ARMAZENAMENTO DE GRÃOS.

IndeferidaInvention Patent

Application data

Number

PI8504364

Type

Invention Patent

Filing

09/10/1985

Publication

04/14/1987

Progress at the INPI

  1. Filing09/10/85
  2. Publication04/14/87
  3. Examination08/04/87
  4. Refused10/02/90
  5. Grant
  6. In force

The application was refused on 10/02/1990 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - Grupo Siderbrás

RJ, BR

See this company's full portfolio

Inventors

P. J. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

09/26/1989

RPI 988

Conhecimento de parecer técnico

#7.1

04/25/1989

RPI 966

Pedido de certificado de adição de invenção

#5.1

12/15/1987

RPI 895

Solicitação de exame técnico

#4.1

08/04/1987

RPI 876

Publicação do pedido de patente

#3.1

04/14/1987

RPI 860

Pedido de patente depositado

#2.1

11/19/1985

RPI 787

111

10/02/1990

RPI 1035

Petição de recurso

#12.2

04/10/1990

RPI 1013

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