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Official data from INPI

SISTEMA E PROCESSO PARA A PRODUÇÃO NO LOCAL DE NITROGÊNIO

PublicadaInvention Patent

Application data

Number

PI8901508

Type

Invention Patent

Filing

03/31/1989

Publication

11/14/1989

Progress at the INPI

  1. Filing03/31/89
  2. Publication11/14/89
  3. Examination11/27/90
  4. Allowance01/07/97
  5. Abandoned
  6. In force

The application was allowed on 01/07/1997 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Praxair Technology, Inc.

US

U. C. (pessoa física)

US

See this company's full portfolio

Inventors

M. C. (pessoa física)

US

Technical data

Priority claims

US

176.658 · 04/01/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/14/1989

RPI 995

Pedido de patente depositado

#2.1

05/16/1989

RPI 969

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 13/00; C01B 21/02.

03/27/2018

RPI 2464

Arquivamento - Art. 38 §2° da LPI

#11.4

01/27/1998

RPI 1414

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

01/07/1997

RPI 1362

14.1

11/01/1994

RPI 1248

14.4

10/25/1994

RPI 1247

Solicitação de exame técnico

#4.1

11/27/1990

RPI 1043

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