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Official data from INPI

PROCESSO E APARELHAGEM PARA MOER A SECO UM MATERIAL GRANULAR

ConcedidaInvention Patent

Application data

Number

PI7908452

Type

Invention Patent

Filing

12/29/1978

Publication

-

Progress at the INPI

  1. Filing12/29/78
  2. Publication
  3. Examination
  4. Allowance11/30/82
  5. Grant06/28/83
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 06/28/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F.L. Smidth & Co. A/S.

See this company's full portfolio

Inventors

L. P. (pessoa física)

R. O. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

50281/78 · 12/29/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1983

RPI 662

Notificação para pagamento de retribuição

#13.1

05/10/1983

RPI 655

Deferimento

#9.1

11/30/1982

RPI 632

Exigência - art. 36 da LPI

#6.1

05/25/1982

RPI 605

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

20.4

04/02/1991

RPI 1061

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