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

PROCESSO APERFEICOADO PARA A POLIMERIZACAO DE MONOMEROS DE CLORETO DE VINILA

Em AnáliseInvention Patent

Application data

Number

PI8004967

Type

Invention Patent

Filing

08/09/1979

Publication

-

Progress at the INPI

  1. Filing08/09/79
  2. Publication
  3. Examination02/24/82
  4. Allowance09/20/83
  5. Grant04/24/84
  6. Terminated08/29/89

The patent was granted on 04/24/1984 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SHINETSU CHEMICAL CO

See this company's full portfolio

Inventors

H. K. (pessoa física)

K. A. (pessoa física)

S. K. (pessoa física)

Y. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

08/29/1989

RPI 984

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

01/03/1984

RPI 689

Deferimento

#9.1

09/20/1983

RPI 674

8.1

05/24/1983

RPI 657

Republicação - classificação IPC

#15.11

04/26/1983

RPI 653

6.2

09/21/1982

RPI 622

Solicitação de exame técnico

#4.1

02/24/1982

RPI 592

Patent monitoring

Track this patent in real time.

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