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Official data from INPI

APARELHO DE CARREGAMENTO DE INSERCOES CILINDRICAS

ConcedidaInvention Patent
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Application data

Number

PI7907294

Type

Invention Patent

Filing

11/09/1979

Publication

-
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Progress at the INPI

  1. Filing11/09/79
  2. Publication
  3. Examination
  4. Allowance09/27/83
  5. Grant03/27/84
  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.

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Latest action published by the INPI: 05/02/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UBE INDUSTRIES

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Inventors

T. I. (pessoa física)

T. U. (pessoa física)

Technical data

IPC Classification

B22C 9/22

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

05/02/1984

RPI 706

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

01/17/1984

RPI 691

Republicação - classificação IPC

#15.11

01/10/1984

RPI 690

Deferimento

#9.1

09/27/1983

RPI 675

Exigência - art. 36 da LPI

#6.1

02/22/1983

RPI 644

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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