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Official data from INPI

VALVULA REDUTORA DE FLUXO DE FLUIDO PARA UMA FERRAMENTA DE REMOCAO DE NUCLEO DE UM ORIFICIO DE SONDAGEM

Em AnáliseInvention Patent

Application data

Number

PI8008721

Type

Invention Patent

Filing

06/25/1979

Publication

-

Progress at the INPI

  1. Filing06/25/79
  2. Publication
  3. Examination08/10/82
  4. Refused03/10/87
  5. Grant
  6. In force

The application was refused on 03/10/1987 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: 03/10/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STANDARD OIL CO

See this company's full portfolio

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

03/10/1987

RPI 855

Petição de recurso

#12.2

07/22/1986

RPI 822

Indeferimento

#9.2

04/08/1986

RPI 807

Conhecimento de parecer técnico

#7.1

02/28/1984

RPI 697

Conhecimento de parecer técnico

#7.1

08/30/1983

RPI 671

Solicitação de exame técnico

#4.1

08/10/1982

RPI 616

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