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Official data from INPI

PROCESSO PARA REDUCAO DAS TENDECIAS A AGLUTINACAO E AO EMPOEIRAMENTO DE GRANULOS DE UREIA, PROCESSO PARA A PREPARACAO DE GRANULOS DE UREIA, E GRANULOS DE UREIA ASSIM OBTIDOS

ConcedidaInvention Patent

Application data

Number

PI8105687

Type

Invention Patent

Filing

09/06/1980

Publication

05/25/1982

Progress at the INPI

  1. Filing09/06/80
  2. Publication05/25/82
  3. Examination07/10/84
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Terminated08/07/90

The patent was granted on 07/26/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNIE VAN KUNSTMESTFAB BV

Inventors

A. W. (pessoa física)

W. M. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

02/17/1987

RPI 852

Exigência - art. 36 da LPI

#6.1

04/02/1985

RPI 754

Solicitação de exame técnico

#4.1

07/10/1984

RPI 716

Publicação do pedido de patente

#3.1

05/25/1982

RPI 605

Pedido de patente depositado

#2.1

10/20/1981

RPI 574

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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