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Official data from INPI

PROCESSO DE PREPARACAO DE ACRILONITRILA OU METACRILONITRILA E RESPECTIVO CATALIZADOR

Em AnáliseInvention Patent

Application data

Number

PI7804847

Type

Invention Patent

Filing

07/28/1977

Publication

-

Progress at the INPI

  1. Filing07/28/77
  2. Publication
  3. Examination
  4. Allowance09/10/85
  5. Grant05/27/86
  6. Terminated07/12/88

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.

Talk to a specialist

Latest action published by the INPI: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STANDARD OIL CO

See this company's full portfolio

Inventors

G. R. (pessoa física)

O. D. (pessoa física)

S. M. (pessoa física)

S. D. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Exigência - art. 36 da LPI

#6.1

11/20/1984

RPI 735

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Conhecimento de parecer técnico

#7.1

03/01/1983

RPI 645

6.2

11/10/1981

RPI 577

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