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Official data from INPI

CEIFEIRA DE CANA-DE-AÇÚCAR COM DIVISORES ROTATIVOS DE CANAS

ConcedidaInvention Patent

Application data

Number

PI8202827

Type

Invention Patent

Filing

05/14/1982

Publication

04/26/1983

Progress at the INPI

  1. Filing05/14/82
  2. Publication04/26/83
  3. Examination07/16/85
  4. Allowance08/26/86
  5. Grant04/28/87
  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: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. O. (pessoa física)

DE

Inventors

G. L. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

G 81 14 378.8 · 05/15/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

12/09/1986

RPI 842

Deferimento

#9.1

08/26/1986

RPI 827

Exigência - art. 36 da LPI

#6.1

02/18/1986

RPI 800

Solicitação de exame técnico

#4.1

07/16/1985

RPI 769

Publicação do pedido de patente

#3.1

04/26/1983

RPI 653

Pedido de patente depositado

#2.1

06/29/1982

RPI 610

Carta-patente expirada

#21.1

Patente extinta em 14/05/97

07/01/2008

RPI 1956

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