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

PROCESSO PARA A COPOLIMERIZAÇÃO EM BRUTO DE ACETATO DE VINILA COM UM DIÉSTER

PublicadaInvention Patent

Application data

Number

PI8706893

Type

Invention Patent

Filing

12/17/1987

Publication

07/26/1988

Progress at the INPI

  1. Filing12/17/87
  2. Publication07/26/88
  3. Examination11/20/90
  4. Allowance07/18/95
  5. Grant02/27/96
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Chemical Patents Inc

US

See this company's full portfolio

Inventors

C. S. (pessoa física)

US

C. G. (pessoa física)

US

E. I. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

943,613 · 12/18/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/26/1988

RPI 927

Pedido de patente depositado

#2.1

03/29/1988

RPI 910

Carta-patente expirada

#21.1

Patente extinta em 17/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

02/27/1996

RPI 1317

Notificação para pagamento de retribuição

#13.1

11/28/1995

RPI 1304

Deferimento

#9.1

07/18/1995

RPI 1285

Exigência - art. 36 da LPI

#6.1

09/20/1994

RPI 1242

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.