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Official data from INPI

SÍLICA HIDRÓFOBA DE PRECIPITAÇÃO, PROCESSO PARA PREPARAÇÃO DE SÍLICA HIDRÓFOBA DE PRECIPITAÇÃO, PROCESSO PARA O REFORÇO DE COMPOSIÇÕES ORGANOPOLISSILOXÂNICA

PublicadaInvention Patent
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Application data

Number

PI8801861

Type

Invention Patent

Filing

04/13/1988

Publication

11/22/1988
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Progress at the INPI

  1. Filing04/13/88
  2. Publication11/22/88
  3. Abandoned02/13/91
  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.

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Latest action published by the INPI: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhodia S/A

SP, BR

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Inventors

F. P. (pessoa física)

FR

J. P. (pessoa física)

FR

Technical data

IPC Classification

C01B 33/12

Priority claims

FR

87/05.199 · 04/13/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/22/1988

RPI 944

Pedido de patente depositado

#2.1

08/02/1988

RPI 928

Arquivamento - Art. 36 §1° da LPI

#11.2

02/21/1995

RPI 1264

Exigência - art. 36 da LPI

#6.1

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

02/13/1991

RPI 1054

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