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Official data from INPI

PREPARACAO DO OXIDO FERRICO FE304 POROSO PARA A LAMA DE PERFURACAO DE POCOS DE PETROLEO POR PROCESSO PLASMATICO

ArquivadaInvention Patent

Application data

Number

PI8502422

Type

Invention Patent

Filing

05/14/1985

Publication

12/30/1986

Progress at the INPI

  1. Filing05/14/85
  2. Publication12/30/86
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 05/14/1985 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. J. (pessoa física)

J. N. (pessoa física)

Inventors

C. [. (pessoa física)

N. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

03/28/1989

RPI 962

Publicação do pedido de patente

#3.1

12/30/1986

RPI 845

Pedido de patente depositado

#2.1

07/30/1985

RPI 771

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C01G 49/08; C09K 7/02.

03/27/2018

RPI 2464

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