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Official data from INPI

PROCESSOS DE PRODUCAO DE ANIDRIDO MALEICO E DE PREPARACAO DE CATALISADORES DE OXIDACAO CONTENDO OXIDOS DE VANADIO E FOSFORO

ConcedidaInvention Patent

Application data

Number

PI8005649

Type

Invention Patent

Filing

12/26/1979

Publication

-

Progress at the INPI

  1. Filing12/26/79
  2. Publication
  3. Examination09/13/83
  4. Allowance12/26/84
  5. Grant08/27/85
  6. Terminated08/02/94

The patent was granted on 08/27/1985 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: 08/27/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STANDARD OIL CO [US]

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Inventors

B. N. (pessoa física)

D. D. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

04/16/1985

RPI 756

Deferimento

#9.1

12/26/1984

RPI 740

Exigência - art. 36 da LPI

#6.1

05/22/1984

RPI 709

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Anuidade - prazo legal encerrado

#18.2

08/02/1994

RPI 1235

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