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Official data from INPI

PROCESSO PARA PREPARAÇÀO DE UMA AMIDA DE ÁCIDO FÓRMICO, E PROCESSO PARA PREPARAÇÀO DE NITRODIARILAMINA

Concessão AnuladaInvention Patent

Application data

Number

PI7900037

Type

Invention Patent

Filing

01/04/1979

Publication

-

Progress at the INPI

  1. Filing01/04/79
  2. Publication
  3. Examination
  4. Allowance03/01/83
  5. Grant09/27/83
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 12/13/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Monsanto Company

US

See this company's full portfolio

Inventors

G. W. (pessoa física)

O. M. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

12/13/1983

RPI 686

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

06/21/1983

RPI 661

Deferimento

#9.1

03/01/1983

RPI 645

6.2

02/16/1982

RPI 591

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 103/34; C07C 103/375; C07C 209/62; C07C 211/56; C07C 231/10; C07C 233/03; C07C 233/00.

03/20/2018

RPI 2463

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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