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Official data from INPI

Processo para preparar sílica dialítica e composição de sílica dialítica.

ArquivadaInvention Patent

Application data

Number

PI8305661

Type

Invention Patent

Filing

10/14/1983

Publication

05/22/1984

Progress at the INPI

  1. Filing10/14/83
  2. Publication05/22/84
  3. Abandoned07/08/86
  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.

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Latest action published by the INPI: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R. Grace & Co.

US

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

US

434.764 · 10/18/1982

US

533.206 · 09/20/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

09/05/1989

RPI 985

Exigência - art. 36 da LPI

#6.1

01/31/1989

RPI 954

6.2

05/31/1988

RPI 919

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

05/22/1984

RPI 709

Pedido de patente depositado

#2.1

12/27/1983

RPI 688

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