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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE CONCENTRADOS DE DIÓXIDO DE TITÂNIO.

IndeferidaInvention Patent

Application data

Number

PI8300518

Type

Invention Patent

Filing

02/02/1983

Publication

11/08/1983

Progress at the INPI

Under appeal
  1. Filing02/02/83
  2. Publication11/08/83
  3. Examination03/11/86
  4. Refused12/06/88
  5. Grant
  6. In force

The application was refused by the INPI on 12/06/1988. The invention was never patented.

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Latest action published by the INPI: 12/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

H. G. (pessoa física)

J. K. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 32 03 482.2 · 02/03/1982

DE

P 32 23 068.0 · 06/21/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

12/06/1988

RPI 946

Conhecimento de parecer técnico

#7.1

02/17/1988

RPI 904

6.2

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

03/11/1986

RPI 803

Publicação do pedido de patente

#3.1

11/08/1983

RPI 681

Pedido de patente depositado

#2.1

03/22/1983

RPI 648

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