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Official data from INPI

ARTIGO DE BAGAGEM

Em AnáliseInvention Patent

Application data

Number

PI8706027

Type

Invention Patent

Filing

02/18/1987

Publication

02/23/1988

Progress at the INPI

  1. Filing02/18/87
  2. Publication02/23/88
  3. Examination10/18/88
  4. Allowance04/26/94
  5. Grant10/25/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/18/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

US

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Inventors

C. W. (pessoa física)

US

W. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

830.995 · 02/19/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/18/1988

RPI 939

14.4

08/09/1988

RPI 929

14.1

08/02/1988

RPI 928

Notificação de entrada na fase nacional - PCT

#1.3

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 18/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

10/25/1994

RPI 1247

100

04/26/1994

RPI 1221

120

12/07/1993

RPI 1201

Petição de recurso

#12.2

04/14/1992

RPI 1115

Indeferimento

#9.2

01/14/1992

RPI 1102

Conhecimento de parecer técnico

#7.1

07/02/1991

RPI 1074

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