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Official data from INPI

PROCESSO DE PREPARACAO DE HIDROCARBONETOS ACETILENICOS VERDADEIROS DE CADEIA PERFLUORADA

ConcedidaInvention Patent

Application data

Number

PI8207544

Type

Invention Patent

Filing

12/29/1981

Publication

10/25/1983

Progress at the INPI

  1. Filing12/29/81
  2. Publication10/25/83
  3. Examination12/27/83
  4. Allowance03/11/86
  5. Grant09/30/86
  6. Terminated10/16/90

The patent was granted on 09/30/1986 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: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UGINE KUHLMANN [FR]

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/30/1986

RPI 832

Notificação para pagamento de retribuição

#13.1

07/01/1986

RPI 819

Deferimento

#9.1

03/11/1986

RPI 803

Exigência - art. 36 da LPI

#6.1

05/21/1985

RPI 761

Solicitação de exame técnico

#4.1

12/27/1983

RPI 688

Publicação do pedido de patente

#3.1

10/25/1983

RPI 679

Pedido de patente depositado

#2.1

02/16/1983

RPI 643

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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