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Official data from INPI

COMPOSTO DE ÉTER DE FENILA E PROCESSO DE PREPARAÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8600034

Type

Invention Patent

Filing

01/07/1986

Publication

09/23/1986

Progress at the INPI

  1. Filing01/07/86
  2. Publication09/23/86
  3. Examination09/13/88
  4. Allowance05/26/92
  5. Grant01/26/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 09/13/1988. 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

P. M. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8500482 · 01/09/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/13/1988

RPI 934

Publicação do pedido de patente

#3.1

09/23/1986

RPI 831

Pedido de patente depositado

#2.1

04/15/1986

RPI 808

Carta-patente expirada

#21.1

Patente extinta em 07/01/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

01/26/1993

RPI 1156

Notificação para pagamento de retribuição

#13.1

10/20/1992

RPI 1142

Republicação - classificação IPC

#15.11

08/11/1992

RPI 1132

Deferimento

#9.1

05/26/1992

RPI 1121

Exigência - art. 36 da LPI

#6.1

07/30/1991

RPI 1078

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