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

APERFEICOAMENTO EM PROCESSO PARA ISOMERIZACAO DO XILENO EM FASE DE VAPOR

ConcedidaInvention Patent

Application data

Number

PI7800035

Type

Invention Patent

Filing

01/10/1977

Publication

-

Progress at the INPI

  1. Filing01/10/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant10/01/85
  6. Terminated01/28/92

The patent was granted on 10/01/1985 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: 10/01/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MOBIL OIL CORP

See this company's full portfolio

Inventors

M. K. (pessoa física)

W. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/01/1985

RPI 780

110

06/04/1985

RPI 763

Recurso

#12.1

08/09/1983

RPI 668

Deferimento

#9.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

09/28/1982

RPI 623

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

Patent monitoring

Track this patent in real time.

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