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Official data from INPI

PROCESSO PARA A HIDROGENAÇÃO DE DUPLAS LIGAÇÕES CARBONO-CARBONO CONTIDAS NA CADEIA PRINCIPAL DE UM POLÍMERO INSATURADO

DeferidaInvention Patent

Application data

Number

PI8400562

Type

Invention Patent

Filing

02/09/1984

Publication

09/25/1984

Progress at the INPI

  1. Filing02/09/84
  2. Publication09/25/84
  3. Examination07/15/86
  4. Allowance11/14/89
  5. Grant05/29/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Goodyear Tire & Rubber Company

US

See this company's full portfolio

Inventors

L. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

468.816 · 02/22/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

Exigência - art. 36 da LPI

#6.1

04/25/1989

RPI 966

Exigência - art. 36 da LPI

#6.1

10/18/1988

RPI 939

Pedido de certificado de adição de invenção

#5.1

09/23/1986

RPI 831

Solicitação de exame técnico

#4.1

07/15/1986

RPI 821

Publicação do pedido de patente

#3.1

09/25/1984

RPI 727

Pedido de patente depositado

#2.1

04/24/1984

RPI 705

Carta-patente expirada

#21.1

Patente extinta em 09/02/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

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