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Official data from INPI

PROCESSO PARA PRODUÇÃO DE AÇO COM DESCARBURAÇÃO RÁPIDA.

Em ExigênciaInvention Patent

Application data

Number

PI8501126

Type

Invention Patent

Filing

03/13/1985

Publication

11/05/1985

Progress at the INPI

  1. Filing03/13/85
  2. Publication11/05/85
  3. Examination06/09/87
  4. Allowance04/30/91
  5. Grant11/26/91
  6. Terminated12/24/96

The patent was granted on 11/26/1991 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Union Carbide Industrial Gases Technology corporation

US

See this company's full portfolio

Inventors

S. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

589.469 · 03/14/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

06/09/1987

RPI 868

Publicação do pedido de patente

#3.1

11/05/1985

RPI 785

Pedido de patente depositado

#2.1

06/04/1985

RPI 763

Anuidade - prazo legal encerrado

#18.2

12/24/1996

RPI 1360

Pedido de licença compulsória

#20.1

04/20/1993

RPI 1168

Pedido de licença compulsória

#20.1

04/13/1993

RPI 1167

Republicação - classificação IPC

#15.11

09/22/1992

RPI 1138

Concessão da patente

#16.1

11/26/1991

RPI 1095

Republicação - classificação IPC

#15.11

10/15/1991

RPI 1089

Notificação para pagamento de retribuição

#13.1

08/13/1991

RPI 1080

Deferimento

#9.1

04/30/1991

RPI 1065

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