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Official data from INPI

PROCESSO E APARELHO PARA A MISTURA DE MATERIAIS SÓLIDOS EM PARTÍCULAS

ConcedidaInvention Patent

Application data

Number

PI8002923

Type

Invention Patent

Filing

05/12/1980

Publication

-

Progress at the INPI

  1. Filing05/12/80
  2. Publication
  3. Examination06/22/82
  4. Allowance07/08/86
  5. Grant02/03/87
  6. Expired06/13/95

The letters patent expired on 06/13/1995: 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: 02/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

See this company's full portfolio

Inventors

J. L. (pessoa física)

US

K. Y. (pessoa física)

US

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

038.738 · 05/14/1979

US

082.471 · 10/09/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/03/1987

RPI 850

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

07/30/1985

RPI 771

Conhecimento de parecer técnico

#7.1

11/16/1983

RPI 682

Solicitação de exame técnico

#4.1

06/22/1982

RPI 609

Carta-patente expirada

#21.1

06/13/1995

RPI 1280

20.4

10/15/1991

RPI 1089

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