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Official data from INPI

MATERIAL À BASE DE NITRETO DE BORO, PROCESSO DE SUA FABRICAÇÃO E SUA UTILIZAÇÃO COMO AGENTE DE REFORÇO

Prazo de SigiloInvention Patent

Application data

Number

PI8903118

Type

Invention Patent

Filing

06/26/1989

Publication

02/06/1990

Progress at the INPI

  1. Filing06/26/89
  2. Publication02/06/90
  3. Examination03/03/92
  4. Allowance
  5. Grant
  6. In force

Published on 02/06/1990, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhodia S/A.

SP, BR

R. C. (pessoa física)

FR

See this company's full portfolio

Inventors

F. S. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

88 08579 · 06/27/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

08/22/1989

RPI 983

Retificação

#15.3

10/31/1995

RPI 1300

Solicitação de exame técnico

#4.1

03/03/1992

RPI 1109

14.1

04/09/1991

RPI 1062

Publicação do pedido de patente

#3.1

02/06/1990

RPI 1005

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