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Official data from INPI

Processo para a obtenção de copoliésteres alquilaromáticos.

Concessão AnuladaInvention Patent

Application data

Number

PI7906405

Type

Invention Patent

Filing

10/04/1979

Publication

-

Progress at the INPI

  1. Filing10/04/79
  2. Publication
  3. Examination06/29/82
  4. Allowance03/01/83
  5. Grant09/27/83
  6. Terminated04/12/94

The patent was granted on 09/27/1983 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: 12/13/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

F. B. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

78 28948 · 10/05/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

12/13/1983

RPI 686

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

06/21/1983

RPI 661

Deferimento

#9.1

03/01/1983

RPI 645

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Anuidade - prazo legal encerrado

#18.2

04/12/1994

RPI 1219

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