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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE ÁCIDOS BENZÓICO 2-(CLORO, BROMO OU NITRO) - 4-(ALQUILSULFONILA)

Arquivada/ExtintaInvention PatentPCT · US1989005165

Application data

Number

PI8907800

Type

Invention Patent

Filing

11/17/1989

Publication

08/27/1991

PCT

US1989005165

Progress at the INPI

  1. Filing11/17/89
  2. Publication08/27/91
  3. Examination03/24/92
  4. Allowance12/01/98
  5. Grant09/08/99
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ICI Americas, Inc.

US

Zeneca AG Products Inc.

US

See this company's full portfolio

Inventors

R. B. (pessoa física)

US

Technical data

Priority claims

US

07/280.787 · 12/07/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 17/11/2009

12/26/2012

RPI 2190

Transferência deferida

#25.1

Transferido de: ICI Americas, Inc.

10/10/2000

RPI 1553

Concessão da patente

#16.1

09/08/1999

RPI 1496

Deferimento

#9.1

12/01/1998

RPI 1456

Exigência - art. 36 da LPI

#6.1

06/23/1998

RPI 1435

Solicitação de exame técnico

#4.1

03/24/1992

RPI 1112

Notificação de entrada na fase nacional - PCT

#1.3

08/27/1991

RPI 1082

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