Official data from INPI

INSTALACAO PARA ORDENACAO DA SEQUENCIA DE ATENDIMENTO DAS CHAMADAS DOS ANDARES EM ELEVADORE

ConcedidaInvention Patent

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Application data

Number

PI7807312

Type

Invention Patent

Filing

11/08/1977

Publication

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Progress at the INPI

Filing11/08/77
Publication
Examination
Allowance06/29/82
Grant02/22/83
Expired05/24/94

The letters patent expired on 05/24/1994: 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: 02/22/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INVENTIO AG

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Inventors

S. H. (pessoa física)

Z. S. (pessoa física)

Technical data

IPC Classification

H04B 17/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

10/19/1982

RPI 626

Deferimento

#9.1

06/29/1982

RPI 610

8.1

05/04/1982

RPI 602

15.0

03/16/1982

RPI 595

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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