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Official data from INPI

COMPOSTO DE 4-HIDROXICUMARINA, PROCESSO PARA A PREPARAÇÃO DE UMA 4-HIDROXIMARINA TETRALIL SUBSTITUÍDA, COMPOSIÇÃO PARA EXTERMINAR ROEDORES E MÉTODO PARA EXTERMINAR ROEDORES NUM LOCAL

ConcedidaInvention Patent

Application data

Number

PI8303087

Type

Invention Patent

Filing

06/10/1983

Publication

01/31/1984

Progress at the INPI

  1. Filing06/10/83
  2. Publication01/31/84
  3. Examination05/06/86
  4. Allowance04/25/89
  5. Grant10/24/89
  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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

I. E. (pessoa física)

GB

P. B. (pessoa física)

DE

Technical data

Priority claims

GB

8217219 · 06/14/1982

GB

8300549 · 01/10/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

08/22/1989

RPI 983

Deferimento

#9.1

04/25/1989

RPI 966

Exigência - art. 36 da LPI

#6.1

08/30/1988

RPI 932

Solicitação de exame técnico

#4.1

05/06/1986

RPI 811

Publicação do pedido de patente

#3.1

01/31/1984

RPI 693

Pedido de patente depositado

#2.1

07/26/1983

RPI 666

Carta-patente expirada

#21.1

Patente extinta em 10/06/98

07/01/2008

RPI 1956

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