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

PROCESSO DE PREPARAÇÃO DE SUBSTRATO REVESTIDO COM UM FILME SELETIVO E SUBSTRATO ASSIM OBTIDO

PublicadaInvention Patent

Application data

Number

PI8806971

Type

Invention Patent

Filing

12/29/1988

Publication

09/26/1989

Progress at the INPI

  1. Filing12/29/88
  2. Publication09/26/89
  3. Examination11/20/90
  4. Allowance01/24/95
  5. Grant10/31/95
  6. Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Universidade Estadual de Campinas - Unicamp

SP, BR

See this company's full portfolio

Inventors

M. A. (pessoa física)

BR

S. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

09/26/1989

RPI 988

Pedido de patente depositado

#2.1

05/02/1989

RPI 967

Carta-patente expirada

#21.1

Patente extinta em 29/12/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/31/1995

RPI 1300

Notificação para pagamento de retribuição

#13.1

06/20/1995

RPI 1281

Deferimento

#9.1

01/24/1995

RPI 1260

Exigência - art. 36 da LPI

#6.1

07/05/1994

RPI 1231

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

Patent monitoring

Track this patent in real time.

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