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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE ARTIGOS DE HIDROGEL CONFORMADOS

Em AnáliseInvention Patent

Application data

Number

PI8505821

Type

Invention Patent

Filing

11/20/1985

Publication

08/12/1986

Progress at the INPI

  1. Filing11/20/85
  2. Publication08/12/86
  3. Examination09/20/88
  4. Allowance12/22/92
  5. Grant06/29/93
  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: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Johnson & Johnson

US

See this company's full portfolio

Inventors

H. L. (pessoa física)

T. K. (pessoa física)

DK

Technical data

IPC Classification

Priority claims

US

673.805 · 11/21/1984

US

703.009 · 02/19/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/20/1988

RPI 935

Publicação do pedido de patente

#3.1

08/12/1986

RPI 825

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

Carta-patente expirada

#21.1

Patente extinta em 20/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

06/29/1993

RPI 1178

Notificação para pagamento de retribuição

#13.1

04/27/1993

RPI 1169

Deferimento

#9.1

12/22/1992

RPI 1151

Exigência - art. 36 da LPI

#6.1

10/01/1991

RPI 1087

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