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Official data from INPI

GRANULADOS POROSOS DE BIOPOLÍMEROS DISPERSÍVEIS E SOLÚVEIS EM ÁGUA E PROCESSO DE PREPARAÇÃO DE GRANULADOS

PublicadaInvention Patent

Application data

Number

PI8703047

Type

Invention Patent

Filing

06/17/1987

Publication

03/08/1988

Progress at the INPI

  1. Filing06/17/87
  2. Publication03/08/88
  3. Examination05/22/90
  4. Allowance01/09/96
  5. Grant11/26/96
  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: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

FR

See this company's full portfolio

Inventors

B. V. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

86/08842 · 06/19/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/08/1988

RPI 907

Pedido de patente depositado

#2.1

09/29/1987

RPI 884

Carta-patente expirada

#21.1

Patente extinta em 17/06/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/26/1996

RPI 1356

Notificação para pagamento de retribuição

#13.1

07/02/1996

RPI 1335

Deferimento

#9.1

01/09/1996

RPI 1310

Exigência - art. 36 da LPI

#6.1

06/20/1995

RPI 1281

Exigência - art. 36 da LPI

#6.1

05/04/1993

RPI 1170

Solicitação de exame técnico

#4.1

05/22/1990

RPI 1019

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