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Official data from INPI

MÉTODO DE PREPARAÇÃO DE CATALIZADOR DE COBRE-CROMO PARA OBTENÇÃO DE AMIDAS A PARTIR DE NITRILAS VIA HIDRÓLISE

ArquivadaInvention Patent

Application data

Number

PI9000959

Type

Invention Patent

Filing

03/01/1990

Publication

08/07/1990

Progress at the INPI

  1. Filing03/01/90
  2. Publication08/07/90
  3. Abandoned01/15/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/11/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R. Grace & Co. - Conn

SP, BR

See this company's full portfolio

Inventors

I. M. (pessoa física)

R. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

11.31

11/11/1997

RPI 1406

Exigência - art. 36 da LPI

#6.1

10/01/1996

RPI 1348

Solicitação de exame técnico

#4.1

01/15/1991

RPI 1050

Publicação antecipada

#3.2

08/07/1990

RPI 1027

Pedido de patente depositado

#2.1

06/26/1990

RPI 1024

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