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Official data from INPI

GUINCHO HIDRÁULICO

Em AnáliseInvention Patent

Application data

Number

PI8300829

Type

Invention Patent

Filing

02/21/1983

Publication

12/26/1984

Progress at the INPI

  1. Filing02/21/83
  2. Publication12/26/84
  3. Examination04/09/85
  4. Allowance08/08/89
  5. Grant03/20/90
  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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Enquip S/A - Engenharia e Equipamentos Hidráulicos e Mecânicos

RJ, BR

Inventors

S. T. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

12/05/1989

RPI 998

Deferimento

#9.1

08/08/1989

RPI 981

Pedido de certificado de adição de invenção

#5.1

09/10/1985

RPI 777

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Publicação do pedido de patente

#3.1

12/26/1984

RPI 740

14.1

10/02/1984

RPI 728

14.4

09/25/1984

RPI 727

Pedido de patente depositado

#2.1

04/05/1983

RPI 650

Carta-patente expirada

#21.1

Patente extinta em 21/02/98

07/01/2008

RPI 1956

20.4

05/31/1994

RPI 1226

Concessão da patente

#16.1

03/20/1990

RPI 1010

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