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Official data from INPI

PROCESSO MELHORADO PARA CURTIMENTO AO CROMO DE COUROS

PublicadaInvention Patent
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Application data

Number

PI8705658

Type

Invention Patent

Filing

10/22/1987

Publication

05/31/1988
View on INPI

Progress at the INPI

  1. Filing10/22/87
  2. Publication05/31/88
  3. Examination12/18/90
  4. Allowance07/04/95
  5. Grant03/26/96
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Roehm Gmbh

DE

Roehm GmbH

DE

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Inventors

M. M. (pessoa física)

MC

Technical data

IPC Classification

C14C 1/08C14C 3/06

Priority claims

DE

P 36 36 002.3 · 10/23/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/31/1988

RPI 919

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 22/10/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/26/1996

RPI 1321

Notificação para pagamento de retribuição

#13.1

11/14/1995

RPI 1302

Deferimento

#9.1

07/04/1995

RPI 1283

Exigência - art. 36 da LPI

#6.1

03/01/1995

RPI 1265

Exigência - art. 36 da LPI

#6.1

08/02/1994

RPI 1235

Conhecimento de parecer técnico

#7.1

02/16/1994

RPI 1211

Solicitação de exame técnico

#4.1

12/18/1990

RPI 1046

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