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Official data from INPI

CADEIA DE SERRA E ELO PARA UMA CADEIA DE SERRA

ConcedidaInvention Patent

Application data

Number

PI8204008

Type

Invention Patent

Filing

07/09/1982

Publication

07/05/1983

Progress at the INPI

  1. Filing07/09/82
  2. Publication07/05/83
  3. Examination07/09/85
  4. Allowance10/14/86
  5. Grant06/30/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Carlton Company

US

Inventors

R. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

301.840 · 09/14/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Republicação - classificação IPC

#15.11

05/05/1987

RPI 863

Notificação para pagamento de retribuição

#13.1

03/10/1987

RPI 855

Deferimento

#9.1

10/14/1986

RPI 834

Exigência - art. 36 da LPI

#6.1

02/18/1986

RPI 800

Solicitação de exame técnico

#4.1

07/09/1985

RPI 768

Publicação do pedido de patente

#3.1

07/05/1983

RPI 663

Pedido de patente depositado

#2.1

08/24/1982

RPI 618

Carta-patente expirada

#21.1

Patente extinta em 09/07/97

07/01/2008

RPI 1956

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