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Official data from INPI

PROCESSO PARA PRODUZIR UM ESTOQUE BASE DE ÓLEO LUBRIFICANTE DESPARAFINADO.

ConcedidaInvention Patent

Application data

Number

PI8103729

Type

Invention Patent

Filing

06/11/1981

Publication

03/02/1982

Progress at the INPI

  1. Filing06/11/81
  2. Publication03/02/82
  3. Examination12/27/83
  4. Allowance03/11/86
  5. Grant09/29/87
  6. Terminated02/04/92

The patent was granted on 09/29/1987 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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

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Inventors

G. W. (pessoa física)

S. M. (pessoa física)

Technical data

IPC Classification

Priority claims

US

158.980 · 06/12/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

110

04/07/1987

RPI 859

Recurso

#12.1

06/24/1986

RPI 818

Deferimento

#9.1

03/11/1986

RPI 803

Exigência - art. 36 da LPI

#6.1

01/22/1985

RPI 744

Pedido de certificado de adição de invenção

#5.1

05/15/1984

RPI 708

Solicitação de exame técnico

#4.1

12/27/1983

RPI 688

Publicação do pedido de patente

#3.1

03/02/1982

RPI 593

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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