(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE DERIVADOS DE ACRILONITRILA, COMPOSICÃO HERBICIDA, E, PROCESSO PARA CONTROLAR O CRESCIMENTO DE PLANTAS INDESEJADAS

Prazo de SigiloInvention Patent

Application data

Number

PI8902686

Type

Invention Patent

Filing

06/07/1989

Publication

03/20/1990

Progress at the INPI

  1. Filing06/07/89
  2. Publication03/20/90
  3. Examination03/17/92
  4. Allowance09/12/95
  5. Grant04/30/96
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 07/18/1989. 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

R. S. (pessoa física)

GB

T. G. (pessoa física)

GB

Technical data

Priority claims

GB

8814881.2 · 06/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/18/1989

RPI 978

Carta-patente expirada

#21.1

Patente extinta em 07/06/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/12/1995

RPI 1293

Exigência - art. 36 da LPI

#6.1

01/31/1995

RPI 1261

Solicitação de exame técnico

#4.1

03/17/1992

RPI 1111

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.