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Official data from INPI

PRATOS (INSTR. MÚS.)

Em AnáliseInvention Patent
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Application data

Number

PI8803560

Type

Invention Patent

Filing

07/15/1988

Publication

02/08/1989
View on INPI

Progress at the INPI

  1. Filing07/15/88
  2. Publication02/08/89
  3. Examination11/07/89
  4. Allowance04/16/96
  5. Grant03/25/97
  6. Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Paiste Ag

CH

Inventors

D. B. (pessoa física)

CH

R. P. (pessoa física)

CH

Technical data

IPC Classification

C22C 9/02G10D 13/06

Priority claims

CH

02 832/87-0 · 07/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/07/1989

RPI 994

Publicação do pedido de patente

#3.1

02/08/1989

RPI 955

Pedido de patente depositado

#2.1

12/20/1988

RPI 948

Carta-patente expirada

#21.1

Patente extinta em 15/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

04/16/1996

RPI 1324

Exigência - art. 36 da LPI

#6.1

11/14/1995

RPI 1302

15.17

06/04/1991

RPI 1070

15.7

06/04/1991

RPI 1070

15.7

04/16/1991

RPI 1063

Pedido de certificado de adição de invenção

#5.1

03/27/1990

RPI 1011

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