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

COMPOSIÇÕES HERBICIDAS QUE CONTÉM PENTALENOS HETEROCÍCLICOS

Em ExigênciaInvention Patent

Application data

Number

PI8203658

Type

Invention Patent

Filing

06/23/1982

Publication

06/21/1983

Progress at the INPI

  1. Filing06/23/82
  2. Publication06/21/83
  3. Examination04/09/85
  4. Allowance09/08/93
  5. Grant03/29/94
  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: 05/24/1988. 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. G. (pessoa física)

GB

M. C. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8119403 · 06/24/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

05/24/1988

RPI 918

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Publicação do pedido de patente

#3.1

06/21/1983

RPI 661

Pedido de patente depositado

#2.1

08/10/1982

RPI 616

Carta-patente expirada

#21.1

Patente extinta em 23/06/97

07/01/2008

RPI 1956

Concessão da patente

#16.1

03/29/1994

RPI 1217

Deferimento

#9.1

09/08/1993

RPI 1188

Exigência - art. 36 da LPI

#6.1

02/24/1993

RPI 1160

Patent monitoring

Track this patent in real time.

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