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Official data from INPI

PROCESSO PARA PRODUÇÃO DE GRÂNULOS FERTILIZANTES CONTENDO URÉIA E SULFATO DE AMÔNIO, GRÂNULOS FERTILIZANTES E MISTURA DE GRÂNULOS FERTILIZANTES.

PublicadaInvention Patent

Application data

Number

PI8801831

Type

Invention Patent

Filing

04/15/1988

Publication

11/22/1988

Progress at the INPI

Under appeal
  1. Filing04/15/88
  2. Publication11/22/88
  3. Examination01/16/90
  4. Refused12/20/94
  5. Grant
  6. In force

The application was refused by the INPI on 12/20/1994. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. V. (pessoa física)

NL

Inventors

C. M. (pessoa física)

K. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/22/1988

RPI 944

Pedido de patente depositado

#2.1

08/30/1988

RPI 932

Indeferimento

#9.2

12/20/1994

RPI 1255

Conhecimento de parecer técnico

#7.1

03/08/1994

RPI 1214

Solicitação de exame técnico

#4.1

01/16/1990

RPI 1002

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