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

PROCESSO PARA CONVERTER ECONOMICAMENTE ÓLEOS CARBOMETÁLICOS EM PRODUTOS MAIS LEVES.

ConcedidaInvention Patent

Application data

Number

PI8007423

Type

Invention Patent

Filing

11/13/1980

Publication

-

Progress at the INPI

  1. Filing11/13/80
  2. Publication
  3. Examination09/21/82
  4. Allowance07/10/84
  5. Grant02/26/85
  6. Terminated08/09/94

The patent was granted on 02/26/1985 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: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ashland Oil, Inc

US

See this company's full portfolio

Inventors

B. L. (pessoa física)

M. G. (pessoa física)

Technical data

IPC Classification

Priority claims

US

094.217 · 11/14/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Pedido de certificado de adição de invenção

#5.1

03/08/1983

RPI 646

Solicitação de exame técnico

#4.1

09/21/1982

RPI 622

Anuidade - prazo legal encerrado

#18.2

08/09/1994

RPI 1236

Related

From the same holder

Patent monitoring

Track this patent in real time.

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