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Official data from INPI

PROCESSO PARA A REMOCAO DE NITROSAMINAS DE DINITROANILINAS

ConcedidaInvention Patent

Application data

Number

PI7804599

Type

Invention Patent

Filing

07/18/1977

Publication

-

Progress at the INPI

  1. Filing07/18/77
  2. Publication
  3. Examination
  4. Allowance05/31/83
  5. Grant11/29/83
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LILLY CO ELI

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Inventors

C. W. (pessoa física)

E. R. (pessoa física)

V. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/31/1983

RPI 658

Exigência - art. 36 da LPI

#6.1

11/03/1982

RPI 628

6.2

12/29/1981

RPI 584

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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