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Official data from INPI

REVESTIMENTO DE MÁQUINA DE PAPEL PARA A PRODUÇÃO DE PAPEL DE SEDA

Em AnáliseInvention Patent

Application data

Number

PI8700062

Type

Invention Patent

Filing

01/09/1987

Publication

12/01/1987

Progress at the INPI

  1. Filing01/09/87
  2. Publication12/01/87
  3. Examination04/24/90
  4. Allowance01/26/93
  5. Grant07/27/93
  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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

See this company's full portfolio

Inventors

D. W. (pessoa física)

DE

G. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 00 530.4 · 01/10/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.1

07/26/1988

RPI 927

Publicação do pedido de patente

#3.1

12/01/1987

RPI 893

Pedido de patente depositado

#2.1

05/12/1987

RPI 864

Carta-patente expirada

#21.1

Patente extinta em 09/01/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/27/1993

RPI 1182

Notificação para pagamento de retribuição

#13.1

05/11/1993

RPI 1171

Deferimento

#9.1

01/26/1993

RPI 1156

Exigência - art. 36 da LPI

#6.1

03/24/1992

RPI 1112

14.1

12/04/1990

RPI 1044

Solicitação de exame técnico

#4.1

04/24/1990

RPI 1015

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