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Official data from INPI

Instalação de elevadores.

ConcedidaInvention Patent
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Application data

Number

PI8102801

Type

Invention Patent

Filing

04/30/1981

Publication

12/14/1982
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Progress at the INPI

  1. Filing04/30/81
  2. Publication12/14/82
  3. Examination05/24/83
  4. Allowance05/28/85
  5. Grant12/31/85
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Indústrias Villares S/A

SP, BR

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Inventors

P. D. (pessoa física)

Technical data

IPC Classification

C09B 1/503

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

09/17/1985

RPI 778

Deferimento

#9.1

05/28/1985

RPI 762

Exigência - art. 36 da LPI

#6.1

07/31/1984

RPI 719

Solicitação de exame técnico

#4.1

05/24/1983

RPI 657

Publicação do pedido de patente

#3.1

12/14/1982

RPI 634

Transferência indeferida

#25.2

10/21/1997

RPI 1403

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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