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Official data from INPI

PROCESSO PARA PRODUCAO DE ACIDO CIANURICO E PROCESSO PARA REMOVER UM CONTAMINANTE DE UMA MISTURA DE ACIDO CIANURICO E EM SOLVENTE INERTE

Em AnáliseInvention Patent

Application data

Number

PI7806224

Type

Invention Patent

Filing

09/22/1977

Publication

-

Progress at the INPI

  1. Filing09/22/77
  2. Publication
  3. Examination
  4. Allowance11/01/83
  5. Grant04/24/84
  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: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FMC CORP

See this company's full portfolio

Inventors

C. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/02/1986

RPI 828

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/14/1984

RPI 695

Deferimento

#9.1

11/01/1983

RPI 680

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

6.2

12/22/1981

RPI 583

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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