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Official data from INPI

CALANDRA

Em AnáliseInvention Patent

Application data

Number

PI8800295

Type

Invention Patent

Filing

01/26/1988

Publication

09/06/1988

Progress at the INPI

  1. Filing01/26/88
  2. Publication09/06/88
  3. Examination10/31/89
  4. Allowance04/05/94
  5. Grant10/25/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kleinewefers GmbH

DE

See this company's full portfolio

Inventors

F. K. (pessoa física)

DE

H. F. (pessoa física)

DE

J. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 37 02 245.8 · 01/27/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/31/1989

RPI 993

Publicação do pedido de patente

#3.1

09/06/1988

RPI 933

Pedido de patente depositado

#2.1

05/03/1988

RPI 915

Carta-patente expirada

#21.1

Patente extinta em 26/01/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

08/02/1994

RPI 1235

Deferimento

#9.1

04/05/1994

RPI 1218

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