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Official data from INPI

PROCESSO PARA APERFEICOAR A ESTABILIDADE QUIMICA DE UM LATEX DE BORRACHA NATURAL DE BAIXO TEOR DE AMONIACO E DE UM COMPOSTO DE IMERSAO PREVULCANIZADO A BASE DO DITO LATEX

ConcedidaInvention Patent

Application data

Number

PI8301015

Type

Invention Patent

Filing

03/03/1982

Publication

11/22/1983

Progress at the INPI

  1. Filing03/03/82
  2. Publication11/22/83
  3. Examination03/13/84
  4. Allowance11/01/88
  5. Grant07/25/89
  6. Terminated04/18/95

The patent was granted on 07/25/1989 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FIRESTONE TIRE & RUBBER CO [US]

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Inventors

H. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

02/21/1989

RPI 957

Deferimento

#9.1

11/01/1988

RPI 941

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

Conhecimento de parecer técnico

#7.1

04/23/1985

RPI 757

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

Publicação do pedido de patente

#3.1

11/22/1983

RPI 683

Pedido de patente depositado

#2.1

04/12/1983

RPI 651

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

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