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

PROCESSO APERFEICOADO PARA POLIMERIZAR ETILENO

Em AnáliseInvention Patent

Application data

Number

PI7704172

Type

Invention Patent

Filing

06/29/1976

Publication

-

Progress at the INPI

  1. Filing06/29/76
  2. Publication
  3. Examination
  4. Allowance05/10/83
  5. Grant11/29/83
  6. Terminated07/12/88

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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SUMITOMO CHEMICAL CO

See this company's full portfolio

Inventors

H. F. (pessoa física)

K. S. (pessoa física)

N. S. (pessoa física)

S. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/10/1983

RPI 655

Republicação - classificação IPC

#15.11

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

10/05/1982

RPI 624

6.2

12/29/1981

RPI 584

Patent monitoring

Track this patent in real time.

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