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Official data from INPI

PROCESSO PARA PREPARAR DERIVADOS DE ÁCIDOS FENOXIALCANÓICOS

DeferidaInvention Patent

Application data

Number

PI8305090

Type

Invention Patent

Filing

09/19/1983

Publication

05/08/1984

Progress at the INPI

  1. Filing09/19/83
  2. Publication05/08/84
  3. Examination07/08/86
  4. Allowance09/05/89
  5. Grant03/20/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V., companhia holandesa

NL

Inventors

K. P. (pessoa física)

US

R. S. (pessoa física)

US

Technical data

Priority claims

US

419.860 · 09/20/1982

US

419.865 · 09/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/05/1989

RPI 985

Exigência - art. 36 da LPI

#6.1

01/31/1989

RPI 954

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

05/08/1984

RPI 707

Pedido de patente depositado

#2.1

11/22/1983

RPI 683

Carta-patente expirada

#21.1

Patente extinta em 19/09/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

03/20/1990

RPI 1010

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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