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Official data from INPI

APARELHO PARA FRAGMENTAR AGLOMERAÇÕES EM PARTÍCULAS

ConcedidaInvention Patent

Application data

Number

PI8202057

Type

Invention Patent

Filing

04/12/1982

Publication

03/22/1983

Progress at the INPI

  1. Filing04/12/82
  2. Publication03/22/83
  3. Examination08/28/84
  4. Allowance09/17/85
  5. Grant06/24/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hylsa S.A.

MX

Inventors

E. M. (pessoa física)

MX

G. G. (pessoa física)

MX

Technical data

IPC Classification

Priority claims

US

254.441 · 04/15/1981

US

289.998 · 08/04/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

01/21/1986

RPI 796

Deferimento

#9.1

09/17/1985

RPI 778

6.2

03/19/1985

RPI 752

Solicitação de exame técnico

#4.1

08/28/1984

RPI 723

Publicação do pedido de patente

#3.1

03/22/1983

RPI 648

Pedido de patente depositado

#2.1

06/01/1982

RPI 606

Carta-patente expirada

#21.1

Patente extinta em 12/04/97

07/01/2008

RPI 1956

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