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Official data from INPI

PROCESSO PARA REDUZIR QUANTIDADE DE RACEMIZAÇÃO NA PREPARAÇÃO DE ÉSTER DE ÁCIDO 2-(4-ARILOXIFENOXI)PROPIÔNICO OTICAMENTE ATIVO

Arquivada/ExtintaInvention PatentPCT · US1989002378

Application data

Number

PI8906997

Type

Invention Patent

Filing

05/31/1989

Publication

12/18/1990

PCT

US1989002378

Progress at the INPI

  1. Filing05/31/89
  2. Publication12/18/90
  3. Examination02/18/92
  4. Allowance02/12/97
  5. Grant03/30/99
  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

Dow Agrosciences LLC

US

The Dow Chemical Company

US

See this company's full portfolio

Inventors

J. T. (pessoa física)

US

L. K. (pessoa física)

US

Technical data

Priority claims

US

200,400 · 05/31/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 31/05/2009

12/26/2012

RPI 2190

Transferência deferida

#25.1

Transferido de: The Dow Chemical Company

05/16/2000

RPI 1532

Concessão da patente

#16.1

03/30/1999

RPI 1473

Notificação para pagamento de retribuição

#13.1

05/13/1997

RPI 1380

Deferimento

#9.1

02/12/1997

RPI 1367

Solicitação de exame técnico

#4.1

02/18/1992

RPI 1107

Notificação de entrada na fase nacional - PCT

#1.3

12/18/1990

RPI 1046

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