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Official data from INPI

APERFEICOAMENTO EM PROCESSO DE PRODUCAO DE PAPEL COLADO E COMPOSICAO DE COLAGEM PARA USO NO MESMO

ConcedidaInvention Patent

Application data

Number

PI7701377

Type

Invention Patent

Filing

03/08/1976

Publication

-

Progress at the INPI

  1. Filing03/08/76
  2. Publication
  3. Examination
  4. Allowance05/31/83
  5. Grant11/29/83
  6. Expired07/27/93

The letters patent expired on 07/27/1993: 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HERCULES INC

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Inventors

D. D. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/31/1983

RPI 658

Republicação - classificação IPC

#15.11

01/11/1983

RPI 638

Exigência - art. 36 da LPI

#6.1

09/28/1982

RPI 623

6.2

01/26/1982

RPI 588

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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