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Official data from INPI

PROCESSO E APARELHO PARA MEDIR A UNIFORMIDADE DE UM CORPO E APARELHO PARA APROXIMAR O VALOR ENTRE PICOS, VPK-PK, DA GRANDEZA DE UMA FORMA DE ONDA

Arquivada/ExtintaInvention PatentPCT · US1988001667

Application data

Number

PI8807562

Type

Invention Patent

Filing

05/18/1988

Publication

04/10/1990

PCT

US1988001667

Progress at the INPI

  1. Filing05/18/88
  2. Publication04/10/90
  3. Examination01/15/91
  4. Allowance02/22/94
  5. Grant11/29/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Illinois Tool Works, Inc

US

See this company's full portfolio

Inventors

J. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

062.153 · 06/12/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/05/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

06/07/1994

RPI 1227

Deferimento

#9.1

02/22/1994

RPI 1212

14.1

04/13/1993

RPI 1167

Solicitação de exame técnico

#4.1

01/15/1991

RPI 1050

Notificação de entrada na fase nacional - PCT

#1.3

04/10/1990

RPI 1013

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