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Official data from INPI

Processo de preparação de ácido fosfórico de via úmida.

ConcedidaInvention Patent

Application data

Number

PI8007000

Type

Invention Patent

Filing

10/30/1980

Publication

-

Progress at the INPI

  1. Filing10/30/80
  2. Publication
  3. Examination
  4. Allowance07/08/86
  5. Grant02/03/87
  6. Expired11/21/95

The letters patent expired on 11/21/1995: 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: 02/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. B. (pessoa física)

FR

See this company's full portfolio

Inventors

B. B. (pessoa física)

G. J. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

79 26993 · 10/31/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/03/1987

RPI 850

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

07/31/1984

RPI 719

Conhecimento de parecer técnico

#7.1

12/27/1983

RPI 688

Carta-patente expirada

#21.1

11/21/1995

RPI 1303

Pedido de licença compulsória

#20.1

08/11/1992

RPI 1132

Pedido de licença compulsória

#20.1

08/04/1992

RPI 1131

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