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Official data from INPI

PROCESSO PARA PRODUZIR UM ARTIGO ADEQUADO PARA USO COMO CAMADA BASE PRIMARIA PARA TAPETES QUE TEM ALCAS FELPUDAS ESTUFADAS E ARTIGO OBTIDO

Em AnáliseInvention Patent

Application data

Number

PI7703504

Type

Invention Patent

Filing

07/08/1976

Publication

-

Progress at the INPI

  1. Filing07/08/76
  2. Publication
  3. Examination
  4. Allowance12/22/81
  5. Grant08/31/82
  6. Expired07/06/93

The letters patent expired on 07/06/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STANDARD OIL CO

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Inventors

L. B. (pessoa física)

N. J. (pessoa física)

P. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

07/28/1987

RPI 875

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

04/27/1982

RPI 601

Deferimento

#9.1

12/22/1981

RPI 583

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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