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Official data from INPI

ETERES DE PERHALOFLUOROCARBONO COM PONTOS DE SUBSTITUICAO POR HALOGENEOS E PROCESSO PARA SUA PREPARACAO

ConcedidaInvention Patent
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Application data

Number

PI8103713

Type

Invention Patent

Filing

06/11/1980

Publication

03/02/1982
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Progress at the INPI

  1. Filing06/11/80
  2. Publication03/02/82
  3. Examination04/24/84
  4. Allowance02/12/86
  5. Grant11/25/86
  6. Terminated09/13/94

The patent was granted on 11/25/1986 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: 11/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DOW CHEMICAL CO

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Inventors

C. W. (pessoa física)

E. B. (pessoa física)

M. W. (pessoa física)

Technical data

IPC Classification

C07C 231/00C07C 231/12C07C 235/00C07C 235/06C07C 235/16C07C 253/00C07C 255/00C07C 255/13C07C 301/00C07C 303/00C07C 303/22C07C 309/00C07C 309/80C07C 309/82C07C 43/12C07C 69/63C07C 69/67C07F 9/00C07F 9/38C07F 9/40C07K 7/00C07K 7/06

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/25/1986

RPI 840

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

07/23/1985

RPI 770

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

04/24/1984

RPI 705

Publicação do pedido de patente

#3.1

03/02/1982

RPI 593

Anuidade - prazo legal encerrado

#18.2

09/13/1994

RPI 1241

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