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Official data from INPI

COMPOSICAO E COMPOSTO ANTIOXIDANTES E PROCESSO PARA PRODUCAO DE UM COMPOSTO ANTIOXIDANTE

ConcedidaInvention Patent

Application data

Number

PI8007296

Type

Invention Patent

Filing

11/16/1979

Publication

-

Progress at the INPI

  1. Filing11/16/79
  2. Publication
  3. Examination07/26/83
  4. Allowance09/01/87
  5. Grant02/23/88
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Goodyear Tire & Rubber Company

US

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Inventors

K. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/23/1988

RPI 905

Notificação para pagamento de retribuição

#13.1

12/29/1987

RPI 897

Deferimento

#9.1

09/01/1987

RPI 880

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

Solicitação de exame técnico

#4.1

07/26/1983

RPI 666

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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