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Official data from INPI

PROCESSO PARA FORMAR UM REVESTIMENTO EM UM POÇO DE PETRÓLEO E REVESTIMENTO

PublicadaInvention Patent

Application data

Number

PI8803013

Type

Invention Patent

Filing

06/20/1988

Publication

01/10/1989

Progress at the INPI

  1. Filing06/20/88
  2. Publication01/10/89
  3. Abandoned03/12/91
  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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. C. (pessoa física)

US

Inventors

H. S. (pessoa física)

US

J. B. (pessoa física)

US

J. E. (pessoa física)

US

V. Y. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

064.063 · 06/18/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/10/1989

RPI 951

Pedido de patente depositado

#2.1

11/16/1988

RPI 943

Arquivamento - Art. 36 §1° da LPI

#11.2

09/14/1993

RPI 1189

6.2

03/16/1993

RPI 1163

Solicitação de exame técnico

#4.1

03/12/1991

RPI 1058

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