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Official data from INPI

MICROSCÓPIO ESTÉREO E CAMBIADOR DE ÂNGULO ESTÉREO EM UM MICROSCÓPIO ESTÉREO.

Em AnáliseInvention Patent

Application data

Number

PI8702458

Type

Invention Patent

Filing

05/13/1987

Publication

12/06/1988

Progress at the INPI

  1. Filing05/13/87
  2. Publication12/06/88
  3. Examination06/13/89
  4. Allowance12/08/92
  5. Grant08/31/93
  6. Expired05/11/10

The letters patent expired on 05/11/2010: 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: 06/13/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Haag-Streit AG

CH

Inventors

F. P. (pessoa física)

CH

H. W. (pessoa física)

CH

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/13/1989

RPI 973

Publicação do pedido de patente

#3.1

12/06/1988

RPI 946

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Carta-patente expirada

#21.1

Patente extinta em 13/05/2002

05/11/2010

RPI 2053

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

07/06/1993

RPI 1179

9.1.3

03/09/1993

RPI 1162

Deferimento

#9.1

12/08/1992

RPI 1149

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