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Official data from INPI

CONJUNTO DE COMPLETAMENTO DE POÇO SUBTERRÂNEO E PROCESSO PARA EFETUAR O COMPLETAMENTO DE UM POÇO SUBTERRÂNEO

Em AnáliseInvention Patent

Application data

Number

PI8204544

Type

Invention Patent

Filing

08/03/1982

Publication

07/26/1983

Progress at the INPI

  1. Filing08/03/82
  2. Publication07/26/83
  3. Examination08/27/85
  4. Refused11/01/88
  5. Grant
  6. In force

The application was refused on 11/01/1988 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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chevron Research Company.

US

See this company's full portfolio

Inventors

S. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

289.548 · 08/03/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

11/01/1988

RPI 941

Republicação - classificação IPC

#15.11

09/27/1988

RPI 936

Petição de recurso

#12.2

11/24/1987

RPI 892

Indeferimento

#9.2

08/04/1987

RPI 876

Conhecimento de parecer técnico

#7.1

01/13/1987

RPI 847

5.4

02/25/1986

RPI 801

Pedido de certificado de adição de invenção

#5.1

11/19/1985

RPI 787

Solicitação de exame técnico

#4.1

08/27/1985

RPI 775

Publicação do pedido de patente

#3.1

07/26/1983

RPI 666

Pedido de patente depositado

#2.1

09/14/1982

RPI 621

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