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Official data from INPI

PILULA DE OLIGOMERO DE TEREFTALA TO DE ETILENO E PROCESSO E PROCESSO PARA SUA PRODUCAO

ConcedidaInvention Patent
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Application data

Number

PI8107544

Type

Invention Patent

Filing

11/24/1980

Publication

08/17/1982
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Progress at the INPI

  1. Filing11/24/80
  2. Publication08/17/82
  3. Examination10/16/84
  4. Allowance02/12/86
  5. Grant08/26/86
  6. Terminated06/27/95

The patent was granted on 08/26/1986 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT

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Inventors

C. H. (pessoa física)

Technical data

IPC Classification

C07C 69/82

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

06/18/1985

RPI 765

Solicitação de exame técnico

#4.1

10/16/1984

RPI 730

Publicação do pedido de patente

#3.1

08/17/1982

RPI 617

Pedido de patente depositado

#2.1

01/05/1982

RPI 585

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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