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Official data from INPI

PROCESSO PARA A FABRICAÇÃO DE UM PRODUTO DE SUCCINIMIDAS MODIFICADAS, COMPOSIÇÃO DE ÓLEO LUBRIFICANTE E COMPOSIÇÃO DE COMBUSTÍVEL.

Em AnáliseInvention Patent

Application data

Number

PI8601618

Type

Invention Patent

Filing

04/10/1986

Publication

12/16/1986

Progress at the INPI

  1. Filing04/10/86
  2. Publication12/16/86
  3. Examination11/08/88
  4. Allowance02/09/93
  5. Grant07/27/93
  6. Terminated12/31/96

The patent was granted on 07/27/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chevron Research Company

US

See this company's full portfolio

Inventors

R. W. (pessoa física)

US

Technical data

Priority claims

US

722.909 · 04/12/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/08/1988

RPI 942

Publicação do pedido de patente

#3.1

12/16/1986

RPI 843

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

07/27/1993

RPI 1182

Notificação para pagamento de retribuição

#13.1

05/25/1993

RPI 1173

Deferimento

#9.1

02/09/1993

RPI 1158

Exigência - art. 36 da LPI

#6.1

06/09/1992

RPI 1123

Exigência - art. 36 da LPI

#6.1

10/01/1991

RPI 1087

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