Official data from INPI

APARELHO PARA COMUNICAÇÃO A INTERVALOS PERIÓDICOS E PROCESSO PARA PROPORCIONAR COMUNICAÇÃO COORDENADA PERIODICAMENTE

Arquivada/ExtintaInvention PatentPCT · US1993001981

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Application data

Number

PI9306033

Type

Invention Patent

Filing

03/04/1993

Publication

11/18/1997

PCT

US1993001981

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Progress at the INPI

Filing03/04/93
Publication11/18/97
Examination
Allowance09/21/99
Grant03/21/00
Expired07/09/13

The letters patent expired on 07/09/2013: 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: 07/09/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Q. I. (pessoa física)

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Inventors

E. J. (pessoa física)

K. G. (pessoa física)

L. J. (pessoa física)

R. K. (pessoa física)

Technical data

IPC Classification

H04J 3/16

Priority claims

847,149 · 03/05/1992

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 04/03/2013

07/09/2013

RPI 2218

Concessão da patente

#16.1

03/21/2000

RPI 1524

Deferimento

#9.1

09/21/1999

RPI 1498

Notificação de entrada na fase nacional - PCT

#1.3

11/18/1997

RPI 1407

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