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Official data from INPI

PROCESSO DE PRODUCAO DE UREIA

ConcedidaInvention Patent
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Application data

Number

PI8105217

Type

Invention Patent

Filing

08/12/1981

Publication

04/27/1982
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Progress at the INPI

  1. Filing08/12/81
  2. Publication04/27/82
  3. Examination05/02/84
  4. Allowance03/11/86
  5. Grant11/25/86
  6. Terminated09/13/94

The patent was granted on 11/25/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

IT

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Inventors

C. V. (pessoa física)

L. V. (pessoa física)

Technical data

IPC Classification

C07C 273/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/25/1986

RPI 840

Notificação para pagamento de retribuição

#13.1

07/01/1986

RPI 819

Deferimento

#9.1

03/11/1986

RPI 803

Exigência - art. 36 da LPI

#6.1

03/19/1985

RPI 752

Solicitação de exame técnico

#4.1

05/02/1984

RPI 706

Publicação do pedido de patente

#3.1

04/27/1982

RPI 601

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C07C 126/02.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

09/13/1994

RPI 1241

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