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Official data from INPI

PNEU DE BORRACHA

ConcedidaInvention Patent

Application data

Number

PI7901054

Type

Invention Patent

Filing

02/22/1978

Publication

-

Progress at the INPI

  1. Filing02/22/78
  2. Publication
  3. Examination11/10/81
  4. Allowance01/24/84
  5. Grant07/31/84
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 07/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GOODYEAR TIRE & RUBBER

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Inventors

R. W. (pessoa física)

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

11/10/1981

RPI 577

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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