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Official data from INPI

PROCESSO DE MINERAÇÃO EM SOLUÇÃO DE UM MINÉRIO EXTRAÍVEL DISPOSTO EM UMA CAMADA SUBTERRÂNEA INCLINADA

IndeferidaInvention Patent

Application data

Number

PI8202902

Type

Invention Patent

Filing

05/19/1982

Publication

05/03/1983

Progress at the INPI

Under appeal
  1. Filing05/19/82
  2. Publication05/03/83
  3. Examination07/02/85
  4. Refused05/05/87
  5. Grant
  6. In force

The application was refused by the INPI on 05/05/1987. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 05/05/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Texasgulf Inc.

US

Inventors

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

265.665 · 05/20/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

05/05/1987

RPI 863

Conhecimento de parecer técnico

#7.1

09/23/1986

RPI 831

Solicitação de exame técnico

#4.1

07/02/1985

RPI 767

Publicação do pedido de patente

#3.1

05/03/1983

RPI 654

Pedido de patente depositado

#2.1

07/06/1982

RPI 611

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