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Official data from INPI

PROCESSO PARA MICRO-ENCAPSULAMENTO DE MATERIAL LÍQUIDO E MICRO-CÁPSULAS

Em AnáliseInvention Patent

Application data

Number

PI8501403

Type

Invention Patent

Filing

03/27/1985

Publication

11/26/1985

Progress at the INPI

  1. Filing03/27/85
  2. Publication11/26/85
  3. Examination11/03/87
  4. Allowance09/25/90
  5. Grant05/28/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 11/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Zeneca,Inc.

US

See this company's full portfolio

Inventors

H. S. (pessoa física)

US

M. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

595.136 · 03/30/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/03/1987

RPI 889

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

06/18/1985

RPI 765

Carta-patente expirada

#21.1

Patente extinta em 27/03/2000

07/15/2008

RPI 1958

Pedido de licença compulsória

#20.1

07/19/1994

RPI 1233

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

01/08/1991

RPI 1049

Deferimento

#9.1

09/25/1990

RPI 1034

Exigência - art. 36 da LPI

#6.1

03/06/1990

RPI 1008

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