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Official data from INPI

DISPOSITIVO PARA CLASSIFICAÇÃO DE MATERIAIS A GRANEL PULVERULENTOS

DeferidaInvention Patent

Application data

Number

PI8606325

Type

Invention Patent

Filing

12/19/1986

Publication

10/06/1987

Progress at the INPI

  1. Filing12/19/86
  2. Publication10/06/87
  3. Examination02/17/88
  4. Allowance09/12/89
  5. Grant05/29/90
  6. Terminated10/03/95

The patent was granted on 05/29/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O & K Orenstein & Koppel Aktiengesellschaft

DE

Inventors

U. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 35 45 691.4 · 12/21/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/12/1989

RPI 986

Solicitação de exame técnico

#4.1

02/17/1988

RPI 904

Publicação do pedido de patente

#3.1

10/06/1987

RPI 885

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

01/16/1990

RPI 1002

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