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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE AMINAS GRAXAS PRIMÁRIAS SATURADAS, MEDIANTE HIDROGENAÇÃO DE NITRILAS DE ÁCIDO GRAXO INSATURADAS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9105359

Type

Invention Patent

Filing

12/12/1991

Publication

08/25/1992

Progress at the INPI

  1. Filing12/12/91
  2. Publication08/25/92
  3. Examination10/18/94
  4. Allowance11/10/98
  5. Grant06/15/99
  6. Expired06/11/13

The letters patent expired on 06/11/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Clariant GMBH

DE

H. A. (pessoa física)

DE

See this company's full portfolio

Inventors

A. F. (pessoa física)

DE

D. S. (pessoa física)

DE

J. S. (pessoa física)

DE

Technical data

Priority claims

DE

P4039936.2 · 12/14/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/12/2011

06/11/2013

RPI 2214

Transferência deferida

#25.1

Transferido de: Hoechst Aktiengesellschaft

07/31/2001

RPI 1595

Concessão da patente

#16.1

06/15/1999

RPI 1484

Deferimento

#9.1

11/10/1998

RPI 1453

Solicitação de exame técnico

#4.1

10/18/1994

RPI 1246

Publicação do pedido de patente

#3.1

08/25/1992

RPI 1134

Pedido de patente depositado

#2.1

01/28/1992

RPI 1104

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