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Official data from INPI

PROCESSO PARA A OBTENCAO DE ARTIGOS CONFORMADOS DE CELULOSE

Em AnáliseInvention Patent

Application data

Number

PI7704613

Type

Invention Patent

Filing

07/16/1976

Publication

-

Progress at the INPI

  1. Filing07/16/76
  2. Publication
  3. Examination
  4. Allowance03/09/82
  5. Grant
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 06/29/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. T. (pessoa física)

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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

06/29/1982

RPI 610

15.0

04/06/1982

RPI 598

Deferimento

#9.1

03/09/1982

RPI 594

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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