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Official data from INPI

COMPOSIÇÃO DE REVESTIMENTO ISENTA DE ABSORVENTES DE ULTRAVIOLETA E PROCESSO PARA SUA PREPARAÇÃO.

Em AnáliseInvention Patent

Application data

Number

PI8507257

Type

Invention Patent

Filing

09/27/1985

Publication

11/03/1987

Progress at the INPI

  1. Filing09/27/85
  2. Publication11/03/87
  3. Examination02/23/88
  4. Allowance04/20/93
  5. Grant09/28/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Basf Lacke + Farben Aktiengesellschaft

DE

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Inventors

B. W. (pessoa física)

DE

H. K. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 34 37 117.6 · 10/10/1984

DE

PCT/85/00338 · 09/27/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

02/23/1988

RPI 905

Notificação de entrada na fase nacional - PCT

#1.3

11/03/1987

RPI 889

Carta-patente expirada

#21.1

Patente extinta em 27/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

08/17/1993

RPI 1185

Deferimento

#9.1

04/20/1993

RPI 1168

Exigência - art. 36 da LPI

#6.1

07/07/1992

RPI 1127

Exigência - art. 36 da LPI

#6.1

10/15/1991

RPI 1089

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