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Official data from INPI

PROCESSO PARA O TRATAMENTO DE ZONA DE FORMAÇÃO DE FURO SUBTERRÂNEO

ConcedidaInvention Patent

Application data

Number

PI8406966

Type

Invention Patent

Filing

07/11/1984

Publication

06/11/1985

Progress at the INPI

  1. Filing07/11/84
  2. Publication06/11/85
  3. Examination05/13/86
  4. Allowance12/13/88
  5. Grant09/26/89
  6. Terminated10/16/90

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Moskovsky Institut Neftekhimicheskoi I Gazovoi Promyshlennosti Imeni I.M. Gubkina

SU

Inventors

D. K. (pessoa física)

SU

Technical data

IPC Classification

Priority claims

SU

3611705 · 07/12/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/13/1988

RPI 947

6.2

09/22/1987

RPI 883

Solicitação de exame técnico

#4.1

05/13/1986

RPI 812

Notificação de entrada na fase nacional - PCT

#1.3

06/11/1985

RPI 764

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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