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Official data from INPI

CONJUNTO CARCAÇA - COMPRESSOR, CARCAÇA DE COMPRESSOR HERMÉTICO E PROCESSO DE REDUZIR O NÍVEL DE SONS IRRADIADOS POR UMA CARCAÇA DE COMPRESSOR HERMÉTICO.

ConcedidaInvention Patent

Application data

Number

PI8103671

Type

Invention Patent

Filing

06/10/1981

Publication

03/02/1982

Progress at the INPI

  1. Filing06/10/81
  2. Publication03/02/82
  3. Examination06/22/82
  4. Allowance07/14/87
  5. Grant04/26/88
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Tecumseh Products Company

US

See this company's full portfolio

Inventors

L. D. (pessoa física)

Technical data

IPC Classification

Priority claims

US

158.573 · 06/11/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

11/10/1987

RPI 890

Republicação - classificação IPC

#15.11

08/25/1987

RPI 879

Deferimento

#9.1

07/14/1987

RPI 873

Exigência - art. 36 da LPI

#6.1

12/30/1986

RPI 845

Pedido de certificado de adição de invenção

#5.1

12/21/1982

RPI 635

Solicitação de exame técnico

#4.1

06/22/1982

RPI 609

Publicação do pedido de patente

#3.1

03/02/1982

RPI 593

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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