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Official data from INPI

PROCESSO E DISPOSITIVO PARA A PERMANÊNCIA DE IMAGENS

Em AnáliseInvention PatentPCT · US198700203L

Application data

Number

PI8707422

Type

Invention Patent

Filing

08/13/1987

Publication

12/06/1988

PCT

US198700203L

Progress at the INPI

  1. Filing08/13/87
  2. Publication12/06/88
  3. Examination03/06/90
  4. Allowance07/16/91
  5. Grant11/24/92
  6. Terminated10/24/95

The patent was granted on 11/24/1992 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

Pierce Companies, Inc.

US

Inventors

E. G. (pessoa física)

M. B. (pessoa física)

R. S. (pessoa física)

W. H. (pessoa física)

Technical data

IPC Classification

Priority claims

US

896,508 · 08/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

12/06/1988

RPI 946

Anuidade - prazo legal encerrado

#18.2

10/24/1995

RPI 1299

Concessão da patente

#16.1

11/24/1992

RPI 1147

14.1

05/26/1992

RPI 1121

15.17

04/07/1992

RPI 1114

Retificação

#15.3

02/04/1992

RPI 1105

Notificação para pagamento de retribuição

#13.1

11/12/1991

RPI 1093

Deferimento

#9.1

07/16/1991

RPI 1076

Exigência - art. 36 da LPI

#6.1

12/04/1990

RPI 1044

Solicitação de exame técnico

#4.1

03/06/1990

RPI 1008

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