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Official data from INPI

PROCESSOS PARA A PREPARAÇÃO DE UMA COMPOSIÇÃO POLIMÉRICA

PublicadaInvention Patent

Application data

Number

PI8900061

Type

Invention Patent

Filing

01/09/1989

Publication

09/05/1989

Progress at the INPI

  1. Filing01/09/89
  2. Publication09/05/89
  3. Examination03/06/90
  4. Allowance07/18/95
  5. Grant02/27/96
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rohm And Haas Company

US

See this company's full portfolio

Inventors

G. S. (pessoa física)

US

K. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

142,102 · 01/11/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/05/1989

RPI 985

Pedido de patente depositado

#2.1

02/21/1989

RPI 957

Carta-patente expirada

#21.1

Patente extinta em 09/01/2004

12/15/2009

RPI 2032

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

09/14/1993

RPI 1189

Solicitação de exame técnico

#4.1

03/06/1990

RPI 1008

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