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Official data from INPI

APARELHO E PROCESSO PARA MONITORAMENTO DE DENSIDADE DE ROLO DE PAPEL.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002138

Type

Invention Patent

Filing

05/08/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/08/90
  2. Publication08/13/91
  3. Examination12/24/91
  4. Allowance05/11/99
  5. Grant12/28/99
  6. Expired01/15/13

The letters patent expired on 01/15/2013: 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: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

S. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

349,629 · 05/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/05/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

12/28/1999

RPI 1512

Deferimento

#9.1

05/11/1999

RPI 1479

Exigência - art. 36 da LPI

#6.1

10/27/1998

RPI 1451

Exigência - art. 36 da LPI

#6.1

05/05/1998

RPI 1428

Solicitação de exame técnico

#4.1

12/24/1991

RPI 1099

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

08/14/1990

RPI 1028

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