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Official data from INPI

CONJUNTO DE COMPRESSOR COM UM COMPRESSOR HELICOIDAL OU SIMILAR

PublicadaInvention Patent
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Application data

Number

PI8800449

Type

Invention Patent

Filing

02/04/1988

Publication

09/20/1988
View on INPI

Progress at the INPI

  1. Filing02/04/88
  2. Publication09/20/88
  3. Examination01/02/91
  4. Allowance08/11/92
  5. Grant05/25/93
  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.

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Latest action published by the INPI: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

AT

Inventors

H. H. (pessoa física)

AT

Technical data

IPC Classification

F04D 23/00F16D 43/02

Priority claims

AT

A 237/87 · 02/05/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/20/1988

RPI 935

Pedido de patente depositado

#2.1

05/31/1988

RPI 919

Carta-patente expirada

#21.1

Patente extinta em 04/02/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

12/29/1992

RPI 1152

Deferimento

#9.1

08/11/1992

RPI 1132

11.8

09/24/1991

RPI 1086

11.8

07/30/1991

RPI 1078

Arquivamento - Art. 33 da LPI

#11.1

06/11/1991

RPI 1071

Solicitação de exame técnico

#4.1

01/02/1991

RPI 1048

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