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Official data from INPI

BOTÃO

Em AnáliseInvention Patent

Application data

Number

PI8802394

Type

Invention Patent

Filing

05/11/1988

Publication

12/13/1988

Progress at the INPI

  1. Filing05/11/88
  2. Publication12/13/88
  3. Examination10/31/89
  4. Allowance02/16/93
  5. Grant06/29/93
  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.

Talk to a specialist

Latest action published by the INPI: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Y. C. (pessoa física)

JP

Y. K. (pessoa física)

JP

See this company's full portfolio

Inventors

T. S. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

US

48257 · 05/11/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/31/1989

RPI 993

Publicação do pedido de patente

#3.1

12/13/1988

RPI 947

Pedido de patente depositado

#2.1

10/04/1988

RPI 937

Carta-patente expirada

#21.1

Patente extinta em 11/05/2003

09/02/2008

RPI 1965

20.4

09/26/1995

RPI 1295

Concessão da patente

#16.1

06/29/1993

RPI 1178

Deferimento

#9.1

02/16/1993

RPI 1159

Exigência - art. 36 da LPI

#6.1

03/31/1992

RPI 1113

15.5

11/12/1991

RPI 1093

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