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Official data from INPI

PROCESSO PARA DESPOEIRAMENTO DE CONCENTRADO FOSFATICO

Em AnáliseInvention Patent

Application data

Number

PI7806838

Type

Invention Patent

Filing

10/16/1978

Publication

-

Progress at the INPI

  1. Filing10/16/78
  2. Publication
  3. Examination
  4. Allowance03/22/83
  5. Grant10/25/83
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. Q. (pessoa física)

Inventors

M. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

06/28/1988

RPI 923

20.7

06/28/1988

RPI 923

Cessão de direito de exploração

#22.1

03/04/1986

RPI 802

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

8.1

10/13/1982

RPI 625

Exigência - art. 36 da LPI

#6.1

04/06/1982

RPI 598

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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