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Official data from INPI

PROCESSO APERFEICOADO PARA PREPARAR CARBONATO DE ALQUILENO

ConcedidaInvention Patent

Application data

Number

PI8206977

Type

Invention Patent

Filing

12/02/1981

Publication

10/11/1983

Progress at the INPI

  1. Filing12/02/81
  2. Publication10/11/83
  3. Examination11/19/85
  4. Allowance09/13/88
  5. Grant06/27/89
  6. Terminated04/11/95

The patent was granted on 06/27/1989 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: 06/27/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HALCON SD GROUP INC [US]

Inventors

H. J. (pessoa física)

S. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/27/1989

RPI 975

Notificação para pagamento de retribuição

#13.1

01/03/1989

RPI 950

Deferimento

#9.1

09/13/1988

RPI 934

Exigência - art. 36 da LPI

#6.1

04/26/1988

RPI 914

Exigência - art. 36 da LPI

#6.1

09/01/1987

RPI 880

Solicitação de exame técnico

#4.1

11/19/1985

RPI 787

Publicação do pedido de patente

#3.1

10/11/1983

RPI 677

Pedido de patente depositado

#2.1

01/25/1983

RPI 640

Anuidade - prazo legal encerrado

#18.2

04/11/1995

RPI 1271

14.1

03/06/1990

RPI 1008

14.4

03/01/1990

RPI 1007

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