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Official data from INPI

COMPOSICAO DE MATERIAL DE CAMADA DE BORRACHA,PROCESSO PARA APERFEICOAR A ADESAO DE UMA COMPOSICAO DESSE TIPO A UM MEMBRO METALICO CONTIGUO,E PNEUMATICO

ConcedidaInvention Patent

Application data

Number

PI7805221

Type

Invention Patent

Filing

08/15/1977

Publication

-

Progress at the INPI

  1. Filing08/15/77
  2. Publication
  3. Examination
  4. Allowance03/22/83
  5. Grant09/27/83
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 09/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FIRESTONE TIRE & RUBBER CO

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Inventors

H. A. (pessoa física)

R. F. (pessoa física)

S. S. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

6.2

11/10/1981

RPI 577

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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