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Official data from INPI

PASSAGEM ALONGADA DE CALANDRA PARA MÁQUINA FABRICADORA DE PAPEL.

ConcedidaInvention Patent

Application data

Number

PI8007104

Type

Invention Patent

Filing

10/30/1980

Publication

-

Progress at the INPI

  1. Filing10/30/80
  2. Publication
  3. Examination08/09/83
  4. Allowance08/21/84
  5. Grant03/26/85
  6. Expired11/21/95

The letters patent expired on 11/21/1995: 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

R. A. (pessoa física)

Technical data

IPC Classification

Priority claims

US

90.276 · 11/01/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Republicação - classificação IPC

#15.11

02/28/1984

RPI 697

Exigência - art. 36 da LPI

#6.1

01/17/1984

RPI 691

Solicitação de exame técnico

#4.1

08/09/1983

RPI 668

Carta-patente expirada

#21.1

11/21/1995

RPI 1303

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