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Official data from INPI

ROLO DE FITA COMPOSTA PRÉ-LAMINADA

PublicadaInvention Patent

Application data

Number

PI8703863

Type

Invention Patent

Filing

07/27/1987

Publication

03/29/1988

Progress at the INPI

  1. Filing07/27/87
  2. Publication03/29/88
  3. Examination08/21/90
  4. Allowance11/29/94
  5. Grant05/30/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining And Manufacturing Company

US

See this company's full portfolio

Inventors

J. T. (pessoa física)

DE

P. P. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

US

891.131 · 07/31/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/29/1988

RPI 910

Pedido de patente depositado

#2.1

10/06/1987

RPI 885

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09J 7/02; A41B 13/02.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 27/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

05/30/1995

RPI 1278

Deferimento

#9.1

11/29/1994

RPI 1252

Conhecimento de parecer técnico

#7.1

07/05/1994

RPI 1231

Solicitação de exame técnico

#4.1

08/21/1990

RPI 1029

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