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Official data from INPI

ELEVADOR PARA GRÃOS.

Em AnáliseInvention Patent

Application data

Number

PI8103961

Type

Invention Patent

Filing

06/23/1981

Publication

02/01/1983

Progress at the INPI

  1. Filing06/23/81
  2. Publication02/01/83
  3. Examination04/02/85
  4. Allowance02/12/86
  5. Grant08/26/86
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. J. (pessoa física)

PR, BR

Inventors

B. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

09/20/1988

RPI 935

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Republicação - classificação IPC

#15.11

01/07/1986

RPI 794

Solicitação de exame técnico

#4.1

04/02/1985

RPI 754

Publicação do pedido de patente

#3.1

02/01/1983

RPI 641

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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