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

VISCOSIMENTO E PROCESSO DE TESTAR UMA PROPRIEDADE REOLÓGICA DE UM FLUIDO PELA SUA UTILIZAÇÃO.

Em AnáliseInvention Patent

Application data

Number

PI8007452

Type

Invention Patent

Filing

11/14/1980

Publication

-

Progress at the INPI

  1. Filing11/14/80
  2. Publication
  3. Examination
  4. Allowance05/03/83
  5. Grant11/29/83
  6. Terminated06/21/88

The patent was granted on 11/29/1983 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Halliburton Company

US

See this company's full portfolio

Inventors

C. D. (pessoa física)

G. G. (pessoa física)

Technical data

IPC Classification

Priority claims

US

095,589 · 11/19/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Cessão de direito de exploração

#22.1

12/10/1985

RPI 790

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/20/1983

RPI 674

Deferimento

#9.1

05/03/1983

RPI 654

Exigência - art. 36 da LPI

#6.1

10/05/1982

RPI 624

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.