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Official data from INPI

APERFEIÇOAMENTOS EM FRESAS HELICOIDAIS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101030

Type

Invention Patent

Filing

03/12/1991

Publication

06/11/1991

Progress at the INPI

  1. Filing03/12/91
  2. Publication06/11/91
  3. Examination08/06/91
  4. Allowance08/23/94
  5. Grant05/30/95
  6. Expired06/22/10

The letters patent expired on 06/22/2010: 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: 06/22/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arthur Klink Metalúrgica Ltda

SP, BR

Inventors

H. G. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/03/2006

06/22/2010

RPI 2059

Concessão da patente

#16.1

05/30/1995

RPI 1278

Notificação para pagamento de retribuição

#13.1

12/20/1994

RPI 1255

Deferimento

#9.1

08/23/1994

RPI 1238

Solicitação de exame técnico

#4.1

08/06/1991

RPI 1079

Pedido de patente depositado

#2.1

06/11/1991

RPI 1071

Publicação antecipada

#3.2

06/11/1991

RPI 1071

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