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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE PIGMENTOS AMARELOS DE ÓXIDO DE FERRO

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9002711

Type

Invention Patent

Filing

06/08/1990

Publication

08/20/1991
View on INPI

Progress at the INPI

  1. Filing06/08/90
  2. Publication08/20/91
  3. Examination10/05/93
  4. Allowance03/24/98
  5. Grant11/24/98
  6. Expired01/15/13

The letters patent expired on 01/15/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

DE

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Inventors

D. K. (pessoa física)

DE

D. B. (pessoa física)

DE

D. P. (pessoa física)

DE

D. G. (pessoa física)

DE

Technical data

IPC Classification

C01G 49/06C09C 1/24

Priority claims

DE

P 39 18 894.9 · 06/09/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/06/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

03/24/1998

RPI 1422

Exigência - art. 36 da LPI

#6.1

01/28/1997

RPI 1365

Solicitação de exame técnico

#4.1

10/05/1993

RPI 1192

Publicação do pedido de patente

#3.1

08/20/1991

RPI 1081

Pedido de patente depositado

#2.1

10/16/1990

RPI 1037

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