(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

FERRAMENTA DE FUNDO E PROCESSO DE AMOSTRAGEM DE FLUIDO PROVENIENTE DE UMA FORMAÇÃO DE POÇO

Prazo de SigiloInvention Patent

Application data

Number

PI8904407

Type

Invention Patent

Filing

08/31/1989

Publication

10/02/1990

Progress at the INPI

Awaiting grant fee payment
  1. Filing08/31/89
  2. Publication10/02/90
  3. Examination03/26/91
  4. Allowance04/26/94
  5. Grant
  6. In force

The application was allowed by the INPI on 04/26/1994. The grant of the letters patent is being processed.

AlertaMarcas

Leave your contact and we will alert you

We track INPI publications and let you know as soon as this case moves.

We use your details only for this alert.

Latest action published by the INPI: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

See this company's full portfolio

Inventors

G. Z. (pessoa física)

US

H. B. (pessoa física)

US

J. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

276,491 · 11/23/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/21/1989

RPI 996

Retificação

#15.3

10/11/1994

RPI 1245

Deferimento

#9.1

04/26/1994

RPI 1221

Solicitação de exame técnico

#4.1

03/26/1991

RPI 1060

Publicação do pedido de patente

#3.1

10/02/1990

RPI 1035

Related

From the same holder

Same category

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.