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Official data from INPI

COMPOSIÇÕES PARA ISOLAMENTO DE PROPILENO DE BAIXA FUMAÇA E PROCESSO PARA A PREPARAÇÃO DAS MESMAS

PublicadaInvention Patent

Application data

Number

PI8707036

Type

Invention Patent

Filing

12/23/1987

Publication

08/02/1988

Progress at the INPI

  1. Filing12/23/87
  2. Publication08/02/88
  3. Abandoned08/28/90
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

L. D. (pessoa física)

US

R. I. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

947,126 · 12/29/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/02/1988

RPI 928

Pedido de patente depositado

#2.1

04/05/1988

RPI 911

Arquivamento - Art. 36 §1° da LPI

#11.2

10/04/1994

RPI 1244

Exigência - art. 36 da LPI

#6.1

02/22/1994

RPI 1212

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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