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Official data from INPI

PROCESSO PARA CONTROLE DE SEDIMENTAÇÃO EM UMA MISTURA INERENTEMENTE COLOIDALMENTE ESTÁVEL

IndeferidaInvention Patent

Application data

Number

PI9002900

Type

Invention Patent

Filing

06/20/1990

Publication

08/20/1991

Progress at the INPI

Under appeal
  1. Filing06/20/90
  2. Publication08/20/91
  3. Examination12/03/91
  4. Refused06/02/98
  5. Grant
  6. In force

The application was refused by the INPI on 06/02/1998. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 06/02/1998. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

De Beers Industrial Diamond Division (Proprietary) Limited

ZA

See this company's full portfolio

Inventors

I. G. (pessoa física)

Technical data

IPC Classification

Priority claims

ZA

89/4673 · 06/20/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

06/02/1998

RPI 1432

Conhecimento de parecer técnico

#7.1

06/10/1997

RPI 1384

Conhecimento de parecer técnico

#7.1

09/10/1996

RPI 1345

6.2

11/21/1995

RPI 1303

Solicitação de exame técnico

#4.1

12/03/1991

RPI 1096

Publicação do pedido de patente

#3.1

08/20/1991

RPI 1081

Pedido de patente depositado

#2.1

11/20/1990

RPI 1042

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