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Official data from INPI

PROCESSO PARA RECUPERACAO DE OXIDO DE ETILENO DE SOLUCOES AQUOSAS

Em AnáliseInvention Patent

Application data

Number

PI8206619

Type

Invention Patent

Filing

11/16/1981

Publication

10/04/1983

Progress at the INPI

  1. Filing11/16/81
  2. Publication10/04/83
  3. Examination11/26/85
  4. Allowance05/17/88
  5. Grant12/27/88
  6. Terminated01/03/95

The patent was granted on 12/27/1988 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HALCON SD GROUP INC [US]

Inventors

B. S. (pessoa física)

H. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

08/29/1989

RPI 984

20.4

08/22/1989

RPI 983

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

Exigência - art. 36 da LPI

#6.1

09/01/1987

RPI 880

Solicitação de exame técnico

#4.1

11/26/1985

RPI 788

Publicação do pedido de patente

#3.1

10/04/1983

RPI 676

Pedido de patente depositado

#2.1

01/04/1983

RPI 637

Anuidade - prazo legal encerrado

#18.2

01/03/1995

RPI 1257

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