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

PROCESSO PARA PRODUZIR EXTRUDADO SILICIOSO

Em ExigênciaInvention Patent

Application data

Number

PI8503173

Type

Invention Patent

Filing

07/03/1985

Publication

03/25/1986

Progress at the INPI

  1. Filing07/03/85
  2. Publication03/25/86
  3. Examination04/05/88
  4. Allowance01/22/91
  5. Grant09/24/91
  6. Terminated07/25/95

The patent was granted on 09/24/1991 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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

See this company's full portfolio

Inventors

E. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

628.680 · 07/06/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

02/14/1989

RPI 956

Solicitação de exame técnico

#4.1

04/05/1988

RPI 911

Publicação do pedido de patente

#3.1

03/25/1986

RPI 805

Pedido de patente depositado

#2.1

09/17/1985

RPI 778

Anuidade - prazo legal encerrado

#18.2

07/25/1995

RPI 1286

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

05/14/1991

RPI 1067

Deferimento

#9.1

01/22/1991

RPI 1051

Exigência - art. 36 da LPI

#6.1

05/22/1990

RPI 1019

Patent monitoring

Track this patent in real time.

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