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Official data from INPI

PROCESSO PARA HIDROTRATAMENTO E CRAQUEAMENTO DE UMA CORRENTE DE HIDROCARBONETO PESADA

Em AnáliseInvention Patent

Application data

Number

PI7808373

Type

Invention Patent

Filing

12/21/1977

Publication

-

Progress at the INPI

  1. Filing12/21/77
  2. Publication
  3. Examination
  4. Allowance09/08/82
  5. Grant04/28/87
  6. Terminated10/03/89

The patent was granted on 04/28/1987 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STANDARD OIL CO

See this company's full portfolio

Inventors

H. A. (pessoa física)

Q. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

14.4

01/12/1988

RPI 899

Concessão da patente

#16.1

04/28/1987

RPI 862

110

01/13/1987

RPI 847

120

06/17/1986

RPI 817

Recurso

#12.1

02/08/1983

RPI 642

Republicação - classificação IPC

#15.11

09/08/1982

RPI 620

Deferimento

#9.1

09/08/1982

RPI 620

6.2

11/03/1981

RPI 576

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