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Official data from INPI

DISPOSITIVO PARA DRENAR LÍQUIDO AQUOSO DE UM OLHO

Em AnáliseInvention Patent

Application data

Number

PI8503100

Type

Invention Patent

Filing

06/27/1985

Publication

03/18/1986

Progress at the INPI

  1. Filing06/27/85
  2. Publication03/18/86
  3. Examination03/01/88
  4. Allowance09/29/92
  5. Grant04/27/93
  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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. J. (pessoa física)

US

Inventors

N. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

GB

8416544 · 06/28/1984

GB

8425946 · 10/15/1984

GB

8430221 · 11/30/1984

GB

8504905 · 02/26/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.7

11/01/1988

RPI 941

Solicitação de exame técnico

#4.1

03/01/1988

RPI 906

Publicação do pedido de patente

#3.1

03/18/1986

RPI 804

Pedido de patente depositado

#2.1

09/10/1985

RPI 777

Carta-patente expirada

#21.1

Patente extinta em 27/06/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

03/02/1993

RPI 1161

Deferimento

#9.1

09/29/1992

RPI 1139

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