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Official data from INPI

PROCESSO PARA DETERMINAR O SENTIDO ADEQUADO DE PERCURSO DE UM CARRO DE ELEVADOR

ConcedidaInvention Patent

Application data

Number

PI8304461

Type

Invention Patent

Filing

08/18/1983

Publication

03/27/1984

Progress at the INPI

  1. Filing08/18/83
  2. Publication03/27/84
  3. Examination07/08/86
  4. Allowance02/28/89
  5. Grant09/26/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. C. (pessoa física)

US

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Inventors

A. H. (pessoa física)

US

L. D. (pessoa física)

US

R. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

409.687 · 08/19/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Deferimento

#9.1

02/28/1989

RPI 958

Exigência - art. 36 da LPI

#6.1

08/30/1988

RPI 932

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

03/27/1984

RPI 701

Pedido de patente depositado

#2.1

10/25/1983

RPI 679

Carta-patente expirada

#21.1

Patente extinta em 18/08/98

07/01/2008

RPI 1956

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