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Official data from INPI

PROCESSO PARA DESPARAFINAR UMA CARGA DE OLEO LUBRIFICANTE PARAFINADO

ConcedidaInvention Patent

Application data

Number

PI7804292

Type

Invention Patent

Filing

07/04/1978

Publication

-

Progress at the INPI

  1. Filing07/04/78
  2. Publication
  3. Examination
  4. Allowance07/13/82
  5. Grant05/27/86
  6. Terminated04/20/93

The patent was granted on 05/27/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. C. (pessoa física)

US

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Inventors

P. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

110

02/04/1986

RPI 798

Recurso

#12.1

11/16/1982

RPI 630

Deferimento

#9.1

07/13/1982

RPI 612

6.2

10/06/1981

RPI 572

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C10G 43/08.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

04/20/1993

RPI 1168

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