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Official data from INPI

PROCESSO E APARELHO PARA DETECTAR PRESENÇA DE REETRÂNCIAS E SALIÊNCIAS

ConcedidaInvention Patent

Application data

Number

PI8203021

Type

Invention Patent

Filing

05/25/1982

Publication

05/10/1983

Progress at the INPI

  1. Filing05/25/82
  2. Publication05/10/83
  3. Examination07/30/85
  4. Allowance12/16/86
  5. Grant07/28/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/28/1987. 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

J. E. (pessoa física)

LU

Technical data

IPC Classification

Priority claims

US

270.087 · 06/03/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Exigência - art. 36 da LPI

#6.1

04/22/1986

RPI 809

Solicitação de exame técnico

#4.1

07/30/1985

RPI 771

Publicação do pedido de patente

#3.1

05/10/1983

RPI 655

Pedido de patente depositado

#2.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

Patente extinta em 25/05/97

07/01/2008

RPI 1956

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