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Official data from INPI

PROCESSO PARA CLORAÇÃO DE MACROGRÂNULOS DE RESINA CLORETO DE POLIVINILA

ConcedidaInvention Patent

Application data

Number

PI8304539

Type

Invention Patent

Filing

08/23/1983

Publication

04/03/1984

Progress at the INPI

  1. Filing08/23/83
  2. Publication04/03/84
  3. Examination07/29/86
  4. Allowance11/08/88
  5. Grant08/29/89
  6. Terminated04/09/96

The patent was granted on 08/29/1989 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: 08/29/1989. 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

A. O. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

411,161 · 08/25/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

02/28/1989

RPI 958

Deferimento

#9.1

11/08/1988

RPI 942

Exigência - art. 36 da LPI

#6.1

04/19/1988

RPI 913

Solicitação de exame técnico

#4.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

04/03/1984

RPI 702

Pedido de patente depositado

#2.1

11/01/1983

RPI 680

Anuidade - prazo legal encerrado

#18.2

04/09/1996

RPI 1323

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