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Official data from INPI

PROCESSO PARA PRODUZIR ÉSTERES ALFA-BETA DE ALQUILA NÃO SATURADOS.

ConcedidaInvention Patent

Application data

Number

PI8107075

Type

Invention Patent

Filing

10/30/1981

Publication

04/12/1983

Progress at the INPI

  1. Filing10/30/81
  2. Publication04/12/83
  3. Examination09/06/83
  4. Allowance05/12/87
  5. Grant10/27/87
  6. Terminated02/04/92

The patent was granted on 10/27/1987 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: 10/27/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ashland Oil, Inc

US

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Inventors

B. L. (pessoa física)

D. C. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/27/1987

RPI 888

Deferimento

#9.1

05/12/1987

RPI 864

Exigência - art. 36 da LPI

#6.1

08/19/1986

RPI 826

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Solicitação de exame técnico

#4.1

09/06/1983

RPI 672

Publicação do pedido de patente

#3.1

04/12/1983

RPI 651

Pedido de patente depositado

#2.1

12/15/1981

RPI 582

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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