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Official data from INPI

FERRAMENTA PARA PREPARO E FRAGMENTACAO ESPECIALMENTE PARA MATERIAIS RESIDUAIS

ConcedidaInvention Patent

Application data

Number

PI7900922

Type

Invention Patent

Filing

02/15/1978

Publication

-

Progress at the INPI

  1. Filing02/15/78
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant10/25/83
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 10/25/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. G. (pessoa física)

E. W. (pessoa física)

Inventors

E. G. (pessoa física)

E. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

10/13/1982

RPI 625

6.2

02/02/1982

RPI 589

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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