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Official data from INPI

PROCESSO PARA A REMOCAO DE NITROSAMINAS DE DINITROANILINAS

ConcedidaInvention Patent

Application data

Number

PI7805279

Type

Invention Patent

Filing

08/17/1977

Publication

-

Progress at the INPI

  1. Filing08/17/77
  2. Publication
  3. Examination
  4. Allowance09/21/82
  5. Grant04/26/83
  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: 04/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LILLY CO ELI

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Inventors

E. R. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

01/25/1983

RPI 640

Republicação - classificação IPC

#15.11

11/30/1982

RPI 632

Deferimento

#9.1

09/21/1982

RPI 622

6.2

10/20/1981

RPI 574

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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