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Official data from INPI

PROCESSO DE RESTAURAÇAO DE VÁLVULAS.

IndeferidaInvention Patent

Application data

Number

PI8405304

Type

Invention Patent

Filing

10/19/1984

Publication

05/27/1986

Progress at the INPI

  1. Filing10/19/84
  2. Publication05/27/86
  3. Examination08/12/86
  4. Refused09/04/90
  5. Grant
  6. In force

The application was refused on 09/04/1990 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: 11/14/1989. 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

C. C. (pessoa física)

BR

R. R. (pessoa física)

BR

R. A. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

11/14/1989

RPI 995

Conhecimento de parecer técnico

#7.1

06/13/1989

RPI 973

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

05/27/1986

RPI 814

Pedido de patente depositado

#2.1

10/22/1985

RPI 783

111

09/04/1990

RPI 1031

Petição de recurso

#12.2

04/10/1990

RPI 1013

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