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Official data from INPI

PROCESSO PARA COLORIR OU TINGIR UM MATERIAL CONSTITUIDO ESSENCIALMENTE POR UM SUBSTRATO IMPREGNADO DE BETUME,PROCESSO PARA A OBTENCAO DE UM COLORIDO DE COBERTURA,DE REVESTIMENTO OU DE ESTANQUEIDADE,E MATERIAL COLORIDO OU TINGIDO

Em AnáliseInvention Patent
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Application data

Number

PI7703463

Type

Invention Patent

Filing

05/28/1976

Publication

-
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Progress at the INPI

  1. Filing05/28/76
  2. Publication
  3. Examination
  4. Allowance04/06/82
  5. Grant
  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: 07/27/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OFIC OMNIUM FRANCAIS IND ET CO

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

07/27/1982

RPI 614

15.0

04/27/1982

RPI 601

Deferimento

#9.1

04/06/1982

RPI 598

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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