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Official data from INPI

ESTRUTURAS DE TEXTURA RETICULADA E PROCESSO PARA PRODUZI-LA

Em AnáliseInvention Patent

Application data

Number

PI7702246

Type

Invention Patent

Filing

11/11/1976

Publication

-

Progress at the INPI

  1. Filing11/11/76
  2. Publication
  3. Examination
  4. Allowance
  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: 12/22/1981. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HERCULES INC

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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

12/22/1981

RPI 583

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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