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Official data from INPI

APERFEIÇOAMENTO EM PROCESSO DE COPOLIMERIZAÇÃO E HOMOPOLIMERIZAÇÃO EM SUSPENSÃO AQUOSA DE MONÔMERO (S) DE VINILA

ConcedidaInvention Patent

Application data

Number

PI8202463

Type

Invention Patent

Filing

04/29/1982

Publication

04/12/1983

Progress at the INPI

  1. Filing04/29/82
  2. Publication04/12/83
  3. Examination06/11/85
  4. Allowance10/27/87
  5. Grant05/31/88
  6. Terminated11/29/94

The patent was granted on 05/31/1988 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The B.F. Goodrich Company

US

See this company's full portfolio

Inventors

K. G. (pessoa física)

US

R. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

258,978 · 04/30/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

10/27/1987

RPI 888

Exigência - art. 36 da LPI

#6.1

02/04/1986

RPI 798

Solicitação de exame técnico

#4.1

06/11/1985

RPI 764

Publicação do pedido de patente

#3.1

04/12/1983

RPI 651

Pedido de patente depositado

#2.1

06/15/1982

RPI 608

Anuidade - prazo legal encerrado

#18.2

11/29/1994

RPI 1252

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