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Official data from INPI

Processo de preparação de homo- e co-polímeros do cloreto de vinila por polimerização em microsuspensão com semeadura e copolímeros do cloreto de vinila obtida pelo processo.

Em AnáliseInvention Patent

Application data

Number

PI8005431

Type

Invention Patent

Filing

08/27/1980

Publication

-

Progress at the INPI

  1. Filing08/27/80
  2. Publication
  3. Examination04/12/83
  4. Allowance12/26/84
  5. Grant06/25/85
  6. Terminated07/12/88

The patent was granted on 06/25/1985 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

A. C. (pessoa física)

F. N. (pessoa física)

P. J. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

79 21524 · 08/28/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/16/1985

RPI 756

Deferimento

#9.1

12/26/1984

RPI 740

14.1

04/10/1984

RPI 703

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

04/12/1983

RPI 651

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