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Official data from INPI

MOINHO COM CILINDRO TUBULAR VARRIDO A GÁS

ConcedidaInvention Patent

Application data

Number

PI8506027

Type

Invention Patent

Filing

12/03/1985

Publication

08/19/1986

Progress at the INPI

  1. Filing12/03/85
  2. Publication08/19/86
  3. Examination04/26/88
  4. Allowance02/28/89
  5. Grant08/29/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. L. Smidth Comércio e Industria Ltda

SP, BR

See this company's full portfolio

Inventors

I. T. (pessoa física)

DK

Technical data

IPC Classification

Priority claims

GB

8430514 · 12/04/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Republicação - classificação IPC

#15.11

05/02/1989

RPI 967

Deferimento

#9.1

02/28/1989

RPI 958

Solicitação de exame técnico

#4.1

04/26/1988

RPI 914

Publicação do pedido de patente

#3.1

08/19/1986

RPI 826

Pedido de patente depositado

#2.1

02/18/1986

RPI 800

Carta-patente expirada

#21.1

Patente extinta em 03/12/2000

07/15/2008

RPI 1958

20.4

05/07/1991

RPI 1066

20.7

05/07/1991

RPI 1066

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